Winbind authentication mechnism
Copyright (C) Tim Potter 2000
- Copyright (C) Andrew Bartlett 2001
-
+ 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
-/* Prototypes from common.h */
-
-NSS_STATUS winbindd_request(int req_type,
- struct winbindd_request *request,
- struct winbindd_response *response);
-
-
/* 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;
- struct passwd *pw;
NTSTATUS nt_status;
+ wbcErr wbc_status;
+ struct wbcAuthUserParams params;
+ struct wbcAuthUserInfo *info = NULL;
+ struct wbcAuthErrorInfo *err = NULL;
+
+ ZERO_STRUCT(params);
if (!user_info) {
- return NT_STATUS_UNSUCCESSFUL;
+ 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);
-
- snprintf(request.data.auth_crap.user, sizeof(request.data.auth_crap.user),
- "%s\\%s", user_info->domain.str, user_info->smb_name.str);
-
- fstrcpy(request.data.auth_crap.user, user_info->smb_name.str);
- fstrcpy(request.data.auth_crap.domain, user_info->domain.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,
- sizeof(request.data.auth_crap.lm_resp_len));
- memcpy(request.data.auth_crap.nt_resp, user_info->nt_resp.data,
- request.data.auth_crap.lm_resp_len);
-
- result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
-
- if (result == NSS_STATUS_SUCCESS) {
-
- pw = Get_Pwnam(user_info->internal_username.str);
-
- if (pw) {
- if (make_server_info_pw(server_info, pw)) {
- nt_status = NT_STATUS_OK;
- } else {
- nt_status = NT_STATUS_NO_MEMORY;
- }
- } else {
- nt_status = NT_STATUS_NO_SUCH_USER;
- }
- } else {
- nt_status = NT_STATUS_LOGON_FAILURE;
+ 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(¶ms, &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);
+}