| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 |
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| 4 | local (dummy) clustering operations
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| 5 |
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| 6 | Copyright (C) Andrew Tridgell 2006
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 | #include "cluster/cluster.h"
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| 24 | #include "cluster/cluster_private.h"
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| 25 | #include "../tdb/include/tdb.h"
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| 26 | #include "tdb_wrap.h"
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| 27 | #include "system/filesys.h"
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| 28 | #include "param/param.h"
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| 29 | #include "librpc/gen_ndr/server_id.h"
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| 30 |
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| 31 | /*
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| 32 | server a server_id for the local node
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| 33 | */
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| 34 | static struct server_id local_id(struct cluster_ops *ops, uint64_t id, uint32_t id2)
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| 35 | {
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| 36 | struct server_id server_id;
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| 37 | ZERO_STRUCT(server_id);
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| 38 | server_id.id = id;
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| 39 | server_id.id2 = id2;
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| 40 | return server_id;
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| 41 | }
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| 42 |
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| 43 |
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| 44 | /*
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| 45 | return a server_id as a string
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| 46 | */
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| 47 | static const char *local_id_string(struct cluster_ops *ops,
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| 48 | TALLOC_CTX *mem_ctx, struct server_id id)
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| 49 | {
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| 50 | return talloc_asprintf(mem_ctx, "%u.%llu.%u", id.node, (unsigned long long)id.id, id.id2);
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| 51 | }
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| 52 |
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| 53 |
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| 54 | /*
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| 55 | open a tmp tdb for the local node. By using smbd_tmp_path() we don't need
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| 56 | TDB_CLEAR_IF_FIRST as the tmp path is wiped at startup
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| 57 | */
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| 58 | static struct tdb_wrap *local_tdb_tmp_open(struct cluster_ops *ops,
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| 59 | TALLOC_CTX *mem_ctx,
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| 60 | struct loadparm_context *lp_ctx,
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| 61 | const char *dbname, int flags)
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| 62 | {
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| 63 | char *path = smbd_tmp_path(mem_ctx, lp_ctx, dbname);
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| 64 | struct tdb_wrap *w;
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| 65 | w = tdb_wrap_open(mem_ctx, path, 0, flags,
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| 66 | O_RDWR|O_CREAT, 0600);
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| 67 | talloc_free(path);
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| 68 | return w;
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| 69 | }
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| 70 |
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| 71 | /*
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| 72 | dummy backend handle function
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| 73 | */
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| 74 | static void *local_backend_handle(struct cluster_ops *ops)
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| 75 | {
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| 76 | return NULL;
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| 77 | }
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| 78 |
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| 79 | /*
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| 80 | dummy message init function - not needed as all messages are local
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| 81 | */
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| 82 | static NTSTATUS local_message_init(struct cluster_ops *ops,
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| 83 | struct messaging_context *msg,
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| 84 | struct server_id server,
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| 85 | cluster_message_fn_t handler)
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| 86 | {
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| 87 | return NT_STATUS_OK;
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| 88 | }
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| 89 |
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| 90 | /*
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| 91 | dummy message send
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| 92 | */
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| 93 | static NTSTATUS local_message_send(struct cluster_ops *ops,
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| 94 | struct server_id server, DATA_BLOB *data)
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| 95 | {
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| 96 | return NT_STATUS_INVALID_DEVICE_REQUEST;
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| 97 | }
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| 98 |
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| 99 | static struct cluster_ops cluster_local_ops = {
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| 100 | .cluster_id = local_id,
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| 101 | .cluster_id_string = local_id_string,
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| 102 | .cluster_tdb_tmp_open = local_tdb_tmp_open,
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| 103 | .backend_handle = local_backend_handle,
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| 104 | .message_init = local_message_init,
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| 105 | .message_send = local_message_send,
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| 106 | .private_data = NULL
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| 107 | };
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| 108 |
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| 109 | void cluster_local_init(void)
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| 110 | {
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| 111 | cluster_set_ops(&cluster_local_ops);
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| 112 | }
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| 113 |
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