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https://github.com/samba-team/samba.git
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185adc4c81
This reverts commit 1f1c04010a
.
160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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Winbind authentication mechnism
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Copyright (C) Tim Potter 2000
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Copyright (C) Andrew Bartlett 2001 - 2002
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_AUTH
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/* Authenticate a user with a challenge/response */
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static NTSTATUS check_winbind_security(const struct auth_context *auth_context,
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void *my_private_data,
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TALLOC_CTX *mem_ctx,
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const struct auth_usersupplied_info *user_info,
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struct auth_serversupplied_info **server_info)
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{
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NTSTATUS nt_status;
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wbcErr wbc_status;
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struct wbcAuthUserParams params;
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struct wbcAuthUserInfo *info = NULL;
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struct wbcAuthErrorInfo *err = NULL;
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if (!user_info) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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DEBUG(10, ("Check auth for: [%s]", user_info->mapped.account_name));
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if (!auth_context) {
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DEBUG(3,("Password for user %s cannot be checked because we have no auth_info to get the challenge from.\n",
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user_info->mapped.account_name));
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (strequal(user_info->mapped.domain_name, get_global_sam_name())) {
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DEBUG(3,("check_winbind_security: Not using winbind, requested domain [%s] was for this SAM.\n",
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user_info->mapped.domain_name));
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return NT_STATUS_NOT_IMPLEMENTED;
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}
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/* Send off request */
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params.account_name = user_info->client.account_name;
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params.domain_name = user_info->mapped.domain_name;
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params.workstation_name = user_info->workstation_name;
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params.flags = 0;
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params.parameter_control= user_info->logon_parameters;
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params.level = WBC_AUTH_USER_LEVEL_RESPONSE;
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memcpy(params.password.response.challenge,
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auth_context->challenge.data,
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sizeof(params.password.response.challenge));
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params.password.response.nt_length = user_info->nt_resp.length;
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params.password.response.nt_data = user_info->nt_resp.data;
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params.password.response.lm_length = user_info->lm_resp.length;
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params.password.response.lm_data = user_info->lm_resp.data;
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/* we are contacting the privileged pipe */
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become_root();
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wbc_status = wbcAuthenticateUserEx(¶ms, &info, &err);
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unbecome_root();
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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DEBUG(10,("check_winbind_security: wbcAuthenticateUserEx failed: %s\n",
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wbcErrorString(wbc_status)));
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}
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if (wbc_status == WBC_ERR_NO_MEMORY) {
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return NT_STATUS_NO_MEMORY;
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}
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if (wbc_status == WBC_ERR_WINBIND_NOT_AVAILABLE) {
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struct auth_methods *auth_method =
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(struct auth_methods *)my_private_data;
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if ( auth_method )
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return auth_method->auth(auth_context, auth_method->private_data,
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mem_ctx, user_info, server_info);
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else
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/* log an error since this should not happen */
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DEBUG(0,("check_winbind_security: ERROR! my_private_data == NULL!\n"));
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}
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if (wbc_status == WBC_ERR_AUTH_ERROR) {
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nt_status = NT_STATUS(err->nt_status);
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wbcFreeMemory(err);
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return nt_status;
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}
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if (!WBC_ERROR_IS_OK(wbc_status)) {
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return NT_STATUS_LOGON_FAILURE;
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}
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nt_status = make_server_info_wbcAuthUserInfo(mem_ctx,
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user_info->client.account_name,
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user_info->mapped.domain_name,
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info, server_info);
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wbcFreeMemory(info);
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if (!NT_STATUS_IS_OK(nt_status)) {
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return nt_status;
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}
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(*server_info)->nss_token |= user_info->was_mapped;
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return nt_status;
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}
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/* module initialisation */
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static NTSTATUS auth_init_winbind(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
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{
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struct auth_methods *result;
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result = TALLOC_ZERO_P(auth_context, struct auth_methods);
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if (result == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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result->name = "winbind";
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result->auth = check_winbind_security;
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if (param && *param) {
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/* we load the 'fallback' module - if winbind isn't here, call this
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module */
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auth_methods *priv;
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if (!load_auth_module(auth_context, param, &priv)) {
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return NT_STATUS_UNSUCCESSFUL;
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}
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result->private_data = (void *)priv;
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}
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*auth_method = result;
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return NT_STATUS_OK;
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}
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NTSTATUS auth_winbind_init(void)
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{
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return smb_register_auth(AUTH_INTERFACE_VERSION, "winbind", auth_init_winbind);
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}
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