s3-talloc Change TALLOC_ZERO_P() to talloc_zero()
[nivanova/samba-autobuild/.git] / source3 / auth / auth_winbind.c
index 5e1567d3c1975dc3adbe1cdceaa679948e5f1328..d4ace2c9193c9ddcb59eadd89a3be1317843650b 100644 (file)
 
    Copyright (C) Tim Potter 2000
    Copyright (C) Andrew Bartlett 2001 - 2002
-   
+
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
-   
+
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-   
+
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
+#include "auth.h"
+#include "nsswitch/libwbclient/wbclient.h"
 
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_AUTH
 
-static NTSTATUS get_info3_from_ndr(TALLOC_CTX *mem_ctx, struct winbindd_response *response, NET_USER_INFO_3 *info3)
-{
-       uint8 *info3_ndr;
-       size_t len = response->length - sizeof(response);
-       prs_struct ps;
-       if (len > 0) {
-               info3_ndr = response->extra_data;
-               if (!prs_init(&ps, len, mem_ctx, UNMARSHALL)) {
-                       return NT_STATUS_NO_MEMORY;
-               }
-               prs_copy_data_in(&ps, info3_ndr, len);
-               prs_set_offset(&ps,0);
-               if (!net_io_user_info3("", info3, &ps, 1, 3)) {
-                       DEBUG(2, ("get_info3_from_ndr: could not parse info3 struct!\n"));
-                       return NT_STATUS_UNSUCCESSFUL;
-               }
-               prs_mem_free(&ps);
-
-               return NT_STATUS_OK;
-       } else {
-               DEBUG(2, ("get_info3_from_ndr: No info3 struct found!\n"));
-               return NT_STATUS_UNSUCCESSFUL;
-       }
-}
-
 /* Authenticate a user with a challenge/response */
 
 static NTSTATUS check_winbind_security(const struct auth_context *auth_context,
                                       void *my_private_data, 
                                       TALLOC_CTX *mem_ctx,
-                                      const auth_usersupplied_info *user_info, 
-                                      auth_serversupplied_info **server_info)
+                                      const struct auth_usersupplied_info *user_info,
+                                      struct auth_serversupplied_info **server_info)
 {
-       struct winbindd_request request;
-       struct winbindd_response response;
-        NSS_STATUS result;
        NTSTATUS nt_status;
-        NET_USER_INFO_3 info3;
+       wbcErr wbc_status;
+       struct wbcAuthUserParams params;
+       struct wbcAuthUserInfo *info = NULL;
+       struct wbcAuthErrorInfo *err = NULL;
+
+       ZERO_STRUCT(params);
 
        if (!user_info) {
                return NT_STATUS_INVALID_PARAMETER;
        }
 
+       DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
        if (!auth_context) {
                DEBUG(3,("Password for user %s cannot be checked because we have no auth_info to get the challenge from.\n", 
-                        user_info->internal_username.str));            
-               return NT_STATUS_UNSUCCESSFUL;
+                        user_info->mapped.account_name));
+               return NT_STATUS_INVALID_PARAMETER;
        }               
 
+       if (strequal(user_info->mapped.domain_name, get_global_sam_name())) {
+               DEBUG(3,("check_winbind_security: Not using winbind, requested domain [%s] was for this SAM.\n",
+                       user_info->mapped.domain_name));
+               return NT_STATUS_NOT_IMPLEMENTED;
+       }
+
        /* Send off request */
 
-       ZERO_STRUCT(request);
-       ZERO_STRUCT(response);
-
-       request.data.auth_crap.flags = WINBIND_PAM_INFO3_NDR;
-
-       push_utf8_fstring(request.data.auth_crap.user, 
-                         user_info->smb_name.str);
-       push_utf8_fstring(request.data.auth_crap.domain, 
-                         user_info->domain.str);
-       push_utf8_fstring(request.data.auth_crap.workstation, 
-                         user_info->wksta_name.str);
-
-       memcpy(request.data.auth_crap.chal, auth_context->challenge.data, sizeof(request.data.auth_crap.chal));
-       
-       request.data.auth_crap.lm_resp_len = MIN(user_info->lm_resp.length, 
-                                                sizeof(request.data.auth_crap.lm_resp));
-       request.data.auth_crap.nt_resp_len = MIN(user_info->nt_resp.length, 
-                                                sizeof(request.data.auth_crap.nt_resp));
-       
-       memcpy(request.data.auth_crap.lm_resp, user_info->lm_resp.data, 
-              request.data.auth_crap.lm_resp_len);
-       memcpy(request.data.auth_crap.nt_resp, user_info->nt_resp.data, 
-              request.data.auth_crap.nt_resp_len);
-       
-       result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
-
-       nt_status = NT_STATUS(response.data.auth.nt_status);
-
-       if (result == NSS_STATUS_SUCCESS && response.extra_data) {
-               if (NT_STATUS_IS_OK(nt_status)) {
-                       if (NT_STATUS_IS_OK(nt_status = get_info3_from_ndr(mem_ctx, &response, &info3))) { 
-                               nt_status = 
-                                       make_server_info_info3(mem_ctx, 
-                                                              user_info->internal_username.str, 
-                                                              user_info->smb_name.str, 
-                                                              user_info->domain.str, 
-                                                              server_info, 
-                                                              &info3); 
-                       }
-               }
-       } else if (NT_STATUS_IS_OK(nt_status)) {
-               nt_status = NT_STATUS_UNSUCCESSFUL;
+       params.account_name     = user_info->client.account_name;
+       params.domain_name      = user_info->mapped.domain_name;
+       params.workstation_name = user_info->workstation_name;
+
+       params.flags            = 0;
+       params.parameter_control= user_info->logon_parameters;
+
+       params.level            = WBC_AUTH_USER_LEVEL_RESPONSE;
+
+       memcpy(params.password.response.challenge,
+              auth_context->challenge.data,
+              sizeof(params.password.response.challenge));
+
+       if (user_info->password.response.nt.length != 0) {
+               params.password.response.nt_length =
+                       user_info->password.response.nt.length;
+               params.password.response.nt_data =
+                       user_info->password.response.nt.data;
+       }
+       if (user_info->password.response.lanman.length != 0) {
+               params.password.response.lm_length =
+                       user_info->password.response.lanman.length;
+               params.password.response.lm_data =
+                       user_info->password.response.lanman.data;
+       }
+
+       /* we are contacting the privileged pipe */
+       become_root();
+       wbc_status = wbcAuthenticateUserEx(&params, &info, &err);
+       unbecome_root();
+
+       if (!WBC_ERROR_IS_OK(wbc_status)) {
+               DEBUG(10,("check_winbind_security: wbcAuthenticateUserEx failed: %s\n",
+                       wbcErrorString(wbc_status)));
+       }
+
+       if (wbc_status == WBC_ERR_NO_MEMORY) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       if (wbc_status == WBC_ERR_WINBIND_NOT_AVAILABLE) {
+               struct auth_methods *auth_method =
+                       (struct auth_methods *)my_private_data;
+
+               if ( auth_method )
+                       return auth_method->auth(auth_context, auth_method->private_data, 
+                               mem_ctx, user_info, server_info);
+               return NT_STATUS_LOGON_FAILURE;
+       }
+
+       if (wbc_status == WBC_ERR_AUTH_ERROR) {
+               nt_status = NT_STATUS(err->nt_status);
+               wbcFreeMemory(err);
+               return nt_status;
+       }
+
+       if (!WBC_ERROR_IS_OK(wbc_status)) {
+               return NT_STATUS_LOGON_FAILURE;
        }
 
+       nt_status = make_server_info_wbcAuthUserInfo(mem_ctx,
+                                                    user_info->client.account_name,
+                                                    user_info->mapped.domain_name,
+                                                    info, server_info);
+       wbcFreeMemory(info);
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       (*server_info)->nss_token |= user_info->was_mapped;
+
         return nt_status;
 }
 
 /* module initialisation */
-NTSTATUS auth_init_winbind(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
+static NTSTATUS auth_init_winbind(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
 {
-       if (!make_auth_methods(auth_context, auth_method))
+       struct auth_methods *result;
+
+       result = talloc_zero(auth_context, struct auth_methods);
+       if (result == NULL) {
                return NT_STATUS_NO_MEMORY;
+       }
+       result->name = "winbind";
+       result->auth = check_winbind_security;
+
+       if (param && *param) {
+               /* we load the 'fallback' module - if winbind isn't here, call this
+                  module */
+               auth_methods *priv;
+               if (!load_auth_module(auth_context, param, &priv)) {
+                       return NT_STATUS_UNSUCCESSFUL;
+               }
+               result->private_data = (void *)priv;
+       }
 
-       (*auth_method)->name = "winbind";
-       (*auth_method)->auth = check_winbind_security;
+       *auth_method = result;
        return NT_STATUS_OK;
 }
+
+NTSTATUS auth_winbind_init(void)
+{
+       return smb_register_auth(AUTH_INTERFACE_VERSION, "winbind", auth_init_winbind);
+}