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https://github.com/samba-team/samba.git
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9c0a3423f0
- added support for "spnego" in binding strings. This enables SPNEGO auth in the dcerpc client code, using as many allter_context calls as are needed To try SPNEGO do this: smbtorture ncacn_ip_tcp:SERVER[spnego,seal] -Uadministrator%password RPC-SAMR
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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Generic Authentication Interface
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
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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 2 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, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/*
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do a non-athenticated dcerpc bind
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*/
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NTSTATUS dcerpc_bind_auth_none(struct dcerpc_pipe *p,
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const char *uuid, uint_t version)
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{
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TALLOC_CTX *tmp_ctx = talloc_new(p);
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NTSTATUS status;
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status = dcerpc_bind_byuuid(p, tmp_ctx, uuid, version);
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talloc_free(tmp_ctx);
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return status;
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}
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/*
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perform a multi-part authenticated bind
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*/
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NTSTATUS dcerpc_bind_auth(struct dcerpc_pipe *p, uint8_t auth_type, uint8_t auth_level,
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const char *uuid, uint_t version)
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{
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NTSTATUS status;
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TALLOC_CTX *tmp_ctx = talloc_new(p);
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DATA_BLOB credentials;
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DATA_BLOB null_data_blob = data_blob(NULL, 0);
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if (!p->conn->security_state.generic_state) {
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status = gensec_client_start(p, &p->conn->security_state.generic_state);
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if (!NT_STATUS_IS_OK(status)) goto done;
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status = gensec_start_mech_by_authtype(p->conn->security_state.generic_state,
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auth_type, auth_level);
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if (!NT_STATUS_IS_OK(status)) goto done;
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}
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p->conn->security_state.auth_info = talloc(p, struct dcerpc_auth);
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if (!p->conn->security_state.auth_info) {
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status = NT_STATUS_NO_MEMORY;
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goto done;
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}
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p->conn->security_state.auth_info->auth_type = auth_type;
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p->conn->security_state.auth_info->auth_level = auth_level;
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p->conn->security_state.auth_info->auth_pad_length = 0;
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p->conn->security_state.auth_info->auth_reserved = 0;
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p->conn->security_state.auth_info->auth_context_id = random();
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p->conn->security_state.auth_info->credentials = null_data_blob;
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status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
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null_data_blob,
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&credentials);
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if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
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goto done;
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}
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p->conn->security_state.auth_info->credentials = credentials;
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status = dcerpc_bind_byuuid(p, tmp_ctx, uuid, version);
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if (!NT_STATUS_IS_OK(status)) {
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goto done;
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}
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status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
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p->conn->security_state.auth_info->credentials,
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&credentials);
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if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
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goto done;
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}
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do {
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p->conn->security_state.auth_info->credentials = credentials;
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if (auth_type == DCERPC_AUTH_TYPE_SPNEGO) {
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status = dcerpc_alter_context(p, tmp_ctx, &p->syntax, &p->transfer_syntax);
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if (NT_STATUS_IS_OK(status)) {
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status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
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p->conn->security_state.auth_info->credentials,
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&credentials);
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}
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} else {
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status = dcerpc_auth3(p->conn, tmp_ctx);
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}
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} while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
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done:
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talloc_free(tmp_ctx);
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if (!NT_STATUS_IS_OK(status)) {
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talloc_free(p->conn->security_state.generic_state);
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ZERO_STRUCT(p->conn->security_state);
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} else {
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/* Authenticated connections use the generic session key */
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p->conn->security_state.session_key = dcerpc_generic_session_key;
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}
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return status;
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}
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