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/credentials/credentials.h"
  27 #include "librpc/rpc/dcerpc.h"
  28 #include "lib/param/param.h"
  29
  30 static NTSTATUS gensec_ntlmssp3_client_update(struct gensec_security *gensec_security,
  31                                               TALLOC_CTX *out_mem_ctx,
  32                                               struct tevent_context *ev,
  33                                               const DATA_BLOB request,
  34                                               DATA_BLOB *reply)
  35 {
  36         NTSTATUS status;
  37         struct gensec_ntlmssp_context *gensec_ntlmssp =
  38                 talloc_get_type_abort(gensec_security->private_data,
  39                                       struct gensec_ntlmssp_context);
  40
  41         status = ntlmssp_update(gensec_ntlmssp->ntlmssp_state, request, reply);
  42         if (NT_STATUS_IS_OK(status) ||
  43             NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
  44                 talloc_steal(out_mem_ctx, reply->data);
  45         }
  46
  47         return status;
  48 }
  49
  50 static NTSTATUS gensec_ntlmssp3_client_start(struct gensec_security *gensec_security)
  51 {
  52         NTSTATUS nt_status;
  53         struct gensec_ntlmssp_context *gensec_ntlmssp;
  54         const char *user, *domain;
  55         const char *password;
  56
  57         nt_status = gensec_ntlmssp_start(gensec_security);
  58         NT_STATUS_NOT_OK_RETURN(nt_status);
  59
  60         gensec_ntlmssp =
  61                 talloc_get_type_abort(gensec_security->private_data,
  62                                       struct gensec_ntlmssp_context);
  63
  64         nt_status = ntlmssp_client_start(gensec_ntlmssp,
  65                                          lp_netbios_name(), lp_workgroup(),
  66                                          lp_client_ntlmv2_auth(), &gensec_ntlmssp->ntlmssp_state);
  67         if (!NT_STATUS_IS_OK(nt_status)) {
  68                 return nt_status;
  69         }
  70
  71         cli_credentials_get_ntlm_username_domain(gensec_security->credentials, gensec_ntlmssp, &user, &domain);
  72         if (!user || !domain) {
  73                 return NT_STATUS_NO_MEMORY;
  74         }
  75
  76         nt_status = ntlmssp_set_username(gensec_ntlmssp->ntlmssp_state, user);
  77         if (!NT_STATUS_IS_OK(nt_status)) {
  78                 return nt_status;
  79         }
  80
  81         nt_status = ntlmssp_set_domain(gensec_ntlmssp->ntlmssp_state, domain);
  82         if (!NT_STATUS_IS_OK(nt_status)) {
  83                 return nt_status;
  84         }
  85
  86         password = cli_credentials_get_password(gensec_security->credentials);
  87         if (!password) {
  88                 return NT_STATUS_NO_MEMORY;
  89         }
  90
  91         nt_status = ntlmssp_set_password(gensec_ntlmssp->ntlmssp_state, password);
  92         if (!NT_STATUS_IS_OK(nt_status)) {
  93                 return nt_status;
  94         }
  95
  96         if (gensec_security->want_features & GENSEC_FEATURE_SESSION_KEY) {
  97                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
  98         }
  99         if (gensec_security->want_features & GENSEC_FEATURE_SIGN) {
 100                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
 101         }
 102         if (gensec_security->want_features & GENSEC_FEATURE_SEAL) {
 103                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
 104                 gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SEAL;
 105         }
 106
 107         return NT_STATUS_OK;
 108 }
 109
 110 static const char *gensec_ntlmssp3_client_oids[] = {
 111         GENSEC_OID_NTLMSSP,
 112         NULL
 113 };
 114
 115 const struct gensec_security_ops gensec_ntlmssp3_client_ops = {
 116         .name           = "ntlmssp3_client",
 117         .sasl_name      = GENSEC_SASL_NAME_NTLMSSP, /* "NTLM" */
 118         .auth_type      = DCERPC_AUTH_TYPE_NTLMSSP,
 119         .oid            = gensec_ntlmssp3_client_oids,
 120         .client_start   = gensec_ntlmssp3_client_start,
 121         .magic          = gensec_ntlmssp_magic,
 122         .update         = gensec_ntlmssp3_client_update,
 123         .sig_size       = gensec_ntlmssp_sig_size,
 124         .sign_packet    = gensec_ntlmssp_sign_packet,
 125         .check_packet   = gensec_ntlmssp_check_packet,
 126         .seal_packet    = gensec_ntlmssp_seal_packet,
 127         .unseal_packet  = gensec_ntlmssp_unseal_packet,
 128         .wrap           = gensec_ntlmssp_wrap,
 129         .unwrap         = gensec_ntlmssp_unwrap,
 130         .session_key    = gensec_ntlmssp_session_key,
 131         .have_feature   = gensec_ntlmssp_have_feature,
 132         .enabled        = true,
 133         .priority       = GENSEC_NTLMSSP
 134 };