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/*
Unix SMB/CIFS implementation.
Generic Authentication Interface for Samba Servers
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
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 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, see <http://www.gnu.org/licenses/>.
*/
/* This code sets up GENSEC in the way that all Samba servers want
* (because they have presumed access to the sam.ldb etc */
#include "includes.h"
#include "auth/auth.h"
#include "auth/gensec/gensec.h"
#include "param/param.h"
static NTSTATUS samba_server_gensec_start_settings(TALLOC_CTX *mem_ctx,
struct tevent_context *event_ctx,
struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
struct gensec_settings *settings,
struct cli_credentials *server_credentials,
const char *target_service,
struct gensec_security **gensec_context)
{
NTSTATUS nt_status;
struct gensec_security *gensec_ctx;
struct auth4_context *auth_context;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) {
return NT_STATUS_NO_MEMORY;
}
nt_status = auth_context_create(tmp_ctx,
event_ctx,
msg_ctx,
lp_ctx,
&auth_context);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("Failed to start auth server code: %s\n", nt_errstr(nt_status)));
talloc_free(tmp_ctx);
return nt_status;
}
nt_status = gensec_server_start(tmp_ctx,
settings,
auth_context,
&gensec_ctx);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(nt_status)));
return nt_status;
}
gensec_set_credentials(gensec_ctx, server_credentials);
if (target_service) {
gensec_set_target_service(gensec_ctx, target_service);
}
*gensec_context = talloc_steal(mem_ctx, gensec_ctx);
talloc_free(tmp_ctx);
return nt_status;
}
NTSTATUS samba_server_gensec_start(TALLOC_CTX *mem_ctx,
struct tevent_context *event_ctx,
struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
struct cli_credentials *server_credentials,
const char *target_service,
struct gensec_security **gensec_context)
{
struct gensec_settings *settings = NULL;
NTSTATUS status;
settings = lpcfg_gensec_settings(mem_ctx, lp_ctx);
if (settings == NULL) {
return NT_STATUS_NO_MEMORY;
}
status = samba_server_gensec_start_settings(mem_ctx, event_ctx,
msg_ctx, lp_ctx,
settings, server_credentials,
target_service,
gensec_context);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(settings);
return status;
}
talloc_reparent(mem_ctx, *gensec_context, settings);
return NT_STATUS_OK;
}
NTSTATUS samba_server_gensec_krb5_start(TALLOC_CTX *mem_ctx,
struct tevent_context *event_ctx,
struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
struct cli_credentials *server_credentials,
const char *target_service,
struct gensec_security **gensec_context)
{
struct gensec_settings *settings = NULL;
const struct gensec_security_ops **backends = NULL;
size_t idx = 0;
NTSTATUS status;
settings = lpcfg_gensec_settings(mem_ctx, lp_ctx);
if (settings == NULL) {
return NT_STATUS_NO_MEMORY;
}
backends = talloc_zero_array(settings,
const struct gensec_security_ops *, 3);
if (backends == NULL) {
TALLOC_FREE(settings);
return NT_STATUS_NO_MEMORY;
}
settings->backends = backends;
gensec_init();
backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_KERBEROS5);
backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_SPNEGO);
status = samba_server_gensec_start_settings(mem_ctx, event_ctx,
msg_ctx, lp_ctx,
settings, server_credentials,
target_service,
gensec_context);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(settings);
return status;
}
talloc_reparent(mem_ctx, *gensec_context, settings);
return NT_STATUS_OK;
}
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