2 Unix SMB/CIFS implementation.
3 Low-level connections.tdb access functions
4 Copyright (C) Volker Lendecke 2007
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "system/filesys.h"
22 #include "smbd/globals.h"
23 #include "dbwrap/dbwrap.h"
24 #include "dbwrap/dbwrap_open.h"
27 static struct db_context *connections_db_ctx(bool rw)
29 static struct db_context *db_ctx;
36 open_flags = rw ? (O_RDWR|O_CREAT) : O_RDONLY;
38 db_ctx = db_open(NULL, lock_path("connections.tdb"), 0,
39 TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH|TDB_DEFAULT, open_flags, 0644);
43 static struct db_record *connections_fetch_record(TALLOC_CTX *mem_ctx,
46 struct db_context *ctx = connections_db_ctx(True);
52 return dbwrap_fetch_locked(ctx, mem_ctx, key);
55 struct db_record *connections_fetch_entry(TALLOC_CTX *mem_ctx,
56 connection_struct *conn,
59 struct connections_key ckey;
63 ckey.pid = messaging_server_id(conn->sconn->msg_ctx);
64 ckey.cnum = conn->cnum;
65 strlcpy(ckey.name, name, sizeof(ckey.name));
67 key.dsize = sizeof(ckey);
68 key.dptr = (uint8 *)&ckey;
70 return connections_fetch_record(mem_ctx, key);
73 struct conn_traverse_state {
74 int (*fn)(struct db_record *rec,
75 const struct connections_key *key,
76 const struct connections_data *data,
81 static int conn_traverse_fn(struct db_record *rec, void *private_data)
85 struct conn_traverse_state *state =
86 (struct conn_traverse_state *)private_data;
88 key = dbwrap_record_get_key(rec);
89 value = dbwrap_record_get_value(rec);
91 if ((key.dsize != sizeof(struct connections_key))
92 || (value.dsize != sizeof(struct connections_data))) {
96 return state->fn(rec, (const struct connections_key *)key.dptr,
97 (const struct connections_data *)value.dptr,
101 int connections_traverse(int (*fn)(struct db_record *rec,
107 struct db_context *ctx = connections_db_ctx(False);
113 status = dbwrap_traverse(ctx, fn, private_data, &count);
114 if (!NT_STATUS_IS_OK(status)) {
121 int connections_forall(int (*fn)(struct db_record *rec,
122 const struct connections_key *key,
123 const struct connections_data *data,
127 struct db_context *ctx;
128 struct conn_traverse_state state;
132 ctx = connections_db_ctx(true);
138 state.private_data = private_data;
140 status = dbwrap_traverse(ctx, conn_traverse_fn, (void *)&state, &count);
141 if (!NT_STATUS_IS_OK(status)) {
148 struct conn_traverse_read_state {
149 int (*fn)(const struct connections_key *key,
150 const struct connections_data *data,
155 static int connections_forall_read_fn(struct db_record *rec,
160 struct conn_traverse_read_state *state =
161 (struct conn_traverse_read_state *)private_data;
163 key = dbwrap_record_get_key(rec);
164 value = dbwrap_record_get_value(rec);
166 if ((key.dsize != sizeof(struct connections_key))
167 || (value.dsize != sizeof(struct connections_data))) {
170 return state->fn((const struct connections_key *)key.dptr,
171 (const struct connections_data *)value.dptr,
172 state->private_data);
175 int connections_forall_read(int (*fn)(const struct connections_key *key,
176 const struct connections_data *data,
180 struct db_context *ctx;
181 struct conn_traverse_read_state state;
185 ctx = connections_db_ctx(false);
191 state.private_data = private_data;
193 status = dbwrap_traverse_read(ctx, connections_forall_read_fn,
194 (void *)&state, &count);
196 if (!NT_STATUS_IS_OK(status)) {
203 bool connections_init(bool rw)
205 return (connections_db_ctx(rw) != NULL);