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samba-mirror/source3/rpc_server/rpc_config.c
Stefan Metzmacher 0651fa474c dcesrv_core: wrap gensec_*() calls in [un]become_root() calls
This is important for the source3/rpc_server code as it might
be called embedded in smbd and may not run as root with access
to our private tdb/ldb files.

Note this is only really needed for 4.15 and older, as
we no longer run the rpc_server embedded in smbd,
but we better be consistent for now.

This should be able to fix the problem the printing no longer works
on Windows 7 with 2021-10 monthly rollup patch (KB5006743).

Windows uses NTLMSSP with privacy at the DCERPC layer on top
of NCACN_NP (smb).

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14867

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-01-24 15:25:36 +00:00

78 lines
2.2 KiB
C

/*
Unix SMB/Netbios implementation.
Generic infrastructure for RPC Daemons
Copyright (C) Simo Sorce 2011
Copyright (C) Andreas Schneider 2011
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/>.
*/
#include "includes.h"
#include "rpc_server/rpc_config.h"
#include "rpc_server/rpc_server.h"
#include "lib/param/param.h"
#include "librpc/rpc/dcesrv_core.h"
#include "lib/global_contexts.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
static struct dcesrv_context_callbacks srv_callbacks = {
.log.successful_authz = dcesrv_log_successful_authz,
.auth.gensec_prepare = dcesrv_auth_gensec_prepare,
.auth.become_root = become_root,
.auth.unbecome_root = unbecome_root,
.assoc_group.find = dcesrv_assoc_group_find,
};
static struct dcesrv_context *global_dcesrv_ctx = NULL;
struct dcesrv_context *global_dcesrv_context(void)
{
NTSTATUS status;
if (global_dcesrv_ctx == NULL) {
struct loadparm_context *lp_ctx = NULL;
DBG_INFO("Initializing DCE/RPC server context\n");
lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
if (lp_ctx == NULL) {
smb_panic("No memory");
}
/*
* Note we MUST use the NULL context here, not the
* autofree context, to avoid side effects in forked
* children exiting.
*/
status = dcesrv_init_context(global_event_context(),
lp_ctx,
&srv_callbacks,
&global_dcesrv_ctx);
if (!NT_STATUS_IS_OK(status)) {
smb_panic("Failed to init DCE/RPC context");
}
talloc_steal(global_dcesrv_ctx, lp_ctx);
}
return global_dcesrv_ctx;
}
void global_dcesrv_context_free(void)
{
TALLOC_FREE(global_dcesrv_ctx);
}