nss_wrapper: Align indentation with the rest of Samba
[Samba.git] / source4 / dsdb / repl / drepl_fsmo.c
blob7a107da6a3de496fbfbf5a5b943462c677abfdaf
1 /*
2 Unix SMB/CIFS mplementation.
4 DSDB replication service - FSMO role change
6 Copyright (C) Nadezhda Ivanova 2010
7 Copyright (C) Andrew Tridgell 2010
8 Copyright (C) Andrew Bartlett 2010
9 Copyright (C) Anatoliy Atanasov 2010
11 based on drepl_ridalloc.c
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 3 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include "includes.h"
29 #include "dsdb/samdb/samdb.h"
30 #include "smbd/service.h"
31 #include "dsdb/repl/drepl_service.h"
32 #include "param/param.h"
34 struct fsmo_role_state {
35 struct irpc_message *msg;
36 struct drepl_takeFSMORole *r;
39 static void drepl_role_callback(struct dreplsrv_service *service,
40 WERROR werr,
41 enum drsuapi_DsExtendedError ext_err,
42 void *cb_data)
44 struct fsmo_role_state *fsmo = talloc_get_type_abort(cb_data, struct fsmo_role_state);
45 if (!W_ERROR_IS_OK(werr)) {
46 DEBUG(2,(__location__ ": Failed role transfer - %s - extended_ret[0x%X]\n",
47 win_errstr(werr), ext_err));
48 } else {
49 DEBUG(2,(__location__ ": Successful role transfer\n"));
51 fsmo->r->out.result = werr;
52 irpc_send_reply(fsmo->msg, NT_STATUS_OK);
56 see which role is we are asked to assume, initialize data and send request
58 NTSTATUS drepl_take_FSMO_role(struct irpc_message *msg,
59 struct drepl_takeFSMORole *r)
61 struct dreplsrv_service *service = talloc_get_type(msg->private_data,
62 struct dreplsrv_service);
63 struct ldb_dn *role_owner_dn, *fsmo_role_dn;
64 TALLOC_CTX *tmp_ctx = talloc_new(service);
65 uint64_t fsmo_info = 0;
66 enum drsuapi_DsExtendedOperation extended_op = DRSUAPI_EXOP_NONE;
67 WERROR werr;
68 enum drepl_role_master role = r->in.role;
69 struct fsmo_role_state *fsmo;
70 bool is_us;
71 int ret;
73 werr = dsdb_get_fsmo_role_info(tmp_ctx, service->samdb, role,
74 &fsmo_role_dn, &role_owner_dn);
75 if (!W_ERROR_IS_OK(werr)) {
76 talloc_free(tmp_ctx);
77 r->out.result = werr;
78 return NT_STATUS_OK;
81 switch (role) {
82 case DREPL_NAMING_MASTER:
83 case DREPL_INFRASTRUCTURE_MASTER:
84 case DREPL_SCHEMA_MASTER:
85 extended_op = DRSUAPI_EXOP_FSMO_REQ_ROLE;
86 break;
87 case DREPL_RID_MASTER:
88 extended_op = DRSUAPI_EXOP_FSMO_RID_REQ_ROLE;
89 break;
90 case DREPL_PDC_MASTER:
91 extended_op = DRSUAPI_EXOP_FSMO_REQ_PDC;
92 break;
93 default:
94 DEBUG(0,("Unknown role %u in role transfer\n",
95 (unsigned)role));
96 /* IRPC messages are trusted, so this really should not happen */
97 smb_panic("Unknown role despite dsdb_get_fsmo_role_info success");
100 ret = samdb_dn_is_our_ntdsa(service->samdb, role_owner_dn, &is_us);
101 if (ret != LDB_SUCCESS) {
102 DEBUG(0,("FSMO role check failed (failed to confirm if our ntdsDsa) for DN %s and owner %s \n",
103 ldb_dn_get_linearized(fsmo_role_dn),
104 ldb_dn_get_linearized(role_owner_dn)));
105 talloc_free(tmp_ctx);
106 r->out.result = WERR_DS_DRA_INTERNAL_ERROR;
107 return NT_STATUS_OK;
110 if (is_us) {
111 DEBUG(5,("FSMO role check failed, we already own DN %s with %s\n",
112 ldb_dn_get_linearized(fsmo_role_dn),
113 ldb_dn_get_linearized(role_owner_dn)));
114 r->out.result = WERR_OK;
115 talloc_free(tmp_ctx);
116 return NT_STATUS_OK;
119 fsmo = talloc(msg, struct fsmo_role_state);
120 NT_STATUS_HAVE_NO_MEMORY(fsmo);
122 fsmo->msg = msg;
123 fsmo->r = r;
125 werr = drepl_request_extended_op(service,
126 fsmo_role_dn,
127 role_owner_dn,
128 extended_op,
129 fsmo_info,
131 drepl_role_callback,
132 fsmo);
133 if (!W_ERROR_IS_OK(werr)) {
134 r->out.result = werr;
135 talloc_free(tmp_ctx);
136 return NT_STATUS_OK;
139 /* mark this message to be answered later */
140 msg->defer_reply = true;
141 dreplsrv_run_pending_ops(service);
142 talloc_free(tmp_ctx);
143 return NT_STATUS_OK;