source3/libsmb/auth_generic.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_generic.h"
  24 #include "auth/gensec/gensec.h"
  25 #include "auth/credentials/credentials.h"
  26 #include "librpc/rpc/dcerpc.h"
  27 #include "lib/param/param.h"
  28
  29 NTSTATUS auth_generic_set_username(struct auth_generic_state *ans,
  30                                    const char *user)
  31 {
  32         cli_credentials_set_username(ans->credentials, user, CRED_SPECIFIED);
  33         return NT_STATUS_OK;
  34 }
  35
  36 NTSTATUS auth_generic_set_domain(struct auth_generic_state *ans,
  37                                  const char *domain)
  38 {
  39         cli_credentials_set_domain(ans->credentials, domain, CRED_SPECIFIED);
  40         return NT_STATUS_OK;
  41 }
  42
  43 NTSTATUS auth_generic_set_password(struct auth_generic_state *ans,
  44                                    const char *password)
  45 {
  46         cli_credentials_set_password(ans->credentials, password, CRED_SPECIFIED);
  47         return NT_STATUS_OK;
  48 }
  49
  50 NTSTATUS auth_generic_client_prepare(TALLOC_CTX *mem_ctx, struct auth_generic_state **auth_generic_state)
  51 {
  52         struct auth_generic_state *ans;
  53         NTSTATUS nt_status;
  54
  55         struct gensec_settings *gensec_settings;
  56         struct loadparm_context *lp_ctx;
  57
  58         ans = talloc_zero(mem_ctx, struct auth_generic_state);
  59         if (!ans) {
  60                 DEBUG(0,("auth_generic_start: talloc failed!\n"));
  61                 return NT_STATUS_NO_MEMORY;
  62         }
  63
  64         lp_ctx = loadparm_init_s3(ans, loadparm_s3_context());
  65         if (lp_ctx == NULL) {
  66                 DEBUG(10, ("loadparm_init_s3 failed\n"));
  67                 TALLOC_FREE(ans);
  68                 return NT_STATUS_INVALID_SERVER_STATE;
  69         }
  70
  71         gensec_settings = lpcfg_gensec_settings(ans, lp_ctx);
  72         if (lp_ctx == NULL) {
  73                 DEBUG(10, ("lpcfg_gensec_settings failed\n"));
  74                 TALLOC_FREE(ans);
  75                 return NT_STATUS_NO_MEMORY;
  76         }
  77
  78         gensec_settings->backends = talloc_zero_array(gensec_settings, struct gensec_security_ops *, 2);
  79         if (gensec_settings->backends == NULL) {
  80                 TALLOC_FREE(ans);
  81                 return NT_STATUS_NO_MEMORY;
  82         }
  83
  84         gensec_settings->backends[0] = &gensec_ntlmssp3_client_ops;
  85
  86         nt_status = gensec_client_start(ans, &ans->gensec_security, gensec_settings);
  87
  88         if (!NT_STATUS_IS_OK(nt_status)) {
  89                 TALLOC_FREE(ans);
  90                 return nt_status;
  91         }
  92
  93         ans->credentials = cli_credentials_init(ans);
  94         if (!ans->credentials) {
  95                 TALLOC_FREE(ans);
  96                 return NT_STATUS_NO_MEMORY;
  97         }
  98
  99         cli_credentials_guess(ans->credentials, lp_ctx);
 100
 101         talloc_unlink(ans, lp_ctx);
 102         talloc_unlink(ans, gensec_settings);
 103
 104         *auth_generic_state = ans;
 105         return NT_STATUS_OK;
 106 }
 107
 108 NTSTATUS auth_generic_client_start(struct auth_generic_state *ans, const char *oid)
 109 {
 110         NTSTATUS status;
 111
 112         /* Transfer the credentials to gensec */
 113         status = gensec_set_credentials(ans->gensec_security, ans->credentials);
 114         if (!NT_STATUS_IS_OK(status)) {
 115                 DEBUG(1, ("Failed to set GENSEC credentials: %s\n",
 116                           nt_errstr(status)));
 117                 return status;
 118         }
 119         talloc_unlink(ans, ans->credentials);
 120         ans->credentials = NULL;
 121
 122         status = gensec_start_mech_by_oid(ans->gensec_security,
 123                                           oid);
 124         if (!NT_STATUS_IS_OK(status)) {
 125                 return status;
 126         }
 127
 128         return NT_STATUS_OK;
 129 }
 130
 131 NTSTATUS auth_generic_client_start_by_authtype(struct auth_generic_state *ans,
 132                                                uint8_t auth_type,
 133                                                uint8_t auth_level)
 134 {
 135         NTSTATUS status;
 136
 137         /* Transfer the credentials to gensec */
 138         status = gensec_set_credentials(ans->gensec_security, ans->credentials);
 139         if (!NT_STATUS_IS_OK(status)) {
 140                 DEBUG(1, ("Failed to set GENSEC credentials: %s\n",
 141                           nt_errstr(status)));
 142                 return status;
 143         }
 144         talloc_unlink(ans, ans->credentials);
 145         ans->credentials = NULL;
 146
 147         status = gensec_start_mech_by_authtype(ans->gensec_security,
 148                                                auth_type, auth_level);
 149         if (!NT_STATUS_IS_OK(status)) {
 150                 return status;
 151         }
 152
 153         return NT_STATUS_OK;
 154 }