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/*
Unix SMB/CIFS implementation.
Generic Authentication Interface
Copyright (C) Andrew Tridgell 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
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
(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.
*/
#include "includes.h"
/*
do a non-athenticated dcerpc bind
*/
NTSTATUS dcerpc_bind_auth_none(struct dcerpc_pipe *p,
const char *uuid, uint_t version)
{
TALLOC_CTX *tmp_ctx = talloc_new(p);
NTSTATUS status;
status = dcerpc_bind_byuuid(p, tmp_ctx, uuid, version);
talloc_free(tmp_ctx);
return status;
}
/*
perform a multi-part authenticated bind
*/
NTSTATUS dcerpc_bind_auth(struct dcerpc_pipe *p, uint8_t auth_type, uint8_t auth_level,
const char *uuid, uint_t version)
{
NTSTATUS status;
TALLOC_CTX *tmp_ctx = talloc_new(p);
DATA_BLOB credentials;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
if (!p->conn->security_state.generic_state) {
status = gensec_client_start(p, &p->conn->security_state.generic_state);
if (!NT_STATUS_IS_OK(status)) goto done;
status = gensec_start_mech_by_authtype(p->conn->security_state.generic_state,
auth_type, auth_level);
if (!NT_STATUS_IS_OK(status)) goto done;
}
p->conn->security_state.auth_info = talloc(p, struct dcerpc_auth);
if (!p->conn->security_state.auth_info) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
p->conn->security_state.auth_info->auth_type = auth_type;
p->conn->security_state.auth_info->auth_level = auth_level;
p->conn->security_state.auth_info->auth_pad_length = 0;
p->conn->security_state.auth_info->auth_reserved = 0;
p->conn->security_state.auth_info->auth_context_id = random();
p->conn->security_state.auth_info->credentials = null_data_blob;
status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
null_data_blob,
&credentials);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
}
p->conn->security_state.auth_info->credentials = credentials;
status = dcerpc_bind_byuuid(p, tmp_ctx, uuid, version);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
p->conn->security_state.auth_info->credentials,
&credentials);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
}
do {
p->conn->security_state.auth_info->credentials = credentials;
if (auth_type == DCERPC_AUTH_TYPE_SPNEGO) {
status = dcerpc_alter_context(p, tmp_ctx, &p->syntax, &p->transfer_syntax);
if (NT_STATUS_IS_OK(status)) {
status = gensec_update(p->conn->security_state.generic_state, tmp_ctx,
p->conn->security_state.auth_info->credentials,
&credentials);
}
} else {
status = dcerpc_auth3(p->conn, tmp_ctx);
}
} while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
done:
talloc_free(tmp_ctx);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(p->conn->security_state.generic_state);
ZERO_STRUCT(p->conn->security_state);
} else {
/* Authenticated connections use the generic session key */
p->conn->security_state.session_key = dcerpc_generic_session_key;
}
return status;
}
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