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b5c6964a50
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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connection claim routines
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Copyright (C) Andrew Tridgell 1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "smbd/smbd.h"
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#include "smbd/globals.h"
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#include "dbwrap/dbwrap.h"
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#include "auth.h"
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#include "../lib/tsocket/tsocket.h"
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#include "messages.h"
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struct count_stat {
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int curr_connections;
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const char *name;
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bool verify;
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};
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/****************************************************************************
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Count the entries belonging to a service in the connection db.
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****************************************************************************/
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static int count_fn(struct smbXsrv_tcon_global0 *tcon,
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void *udp)
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{
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struct count_stat *cs = (struct count_stat *)udp;
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if (cs->verify && !process_exists(tcon->server_id)) {
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return 0;
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}
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if (strequal(tcon->share_name, cs->name)) {
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cs->curr_connections++;
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}
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return 0;
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}
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/****************************************************************************
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Claim an entry in the connections database.
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****************************************************************************/
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int count_current_connections(const char *sharename, bool verify)
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{
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struct count_stat cs;
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NTSTATUS status;
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cs.curr_connections = 0;
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cs.name = sharename;
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cs.verify = verify;
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/*
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* This has a race condition, but locking the chain before hand is worse
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* as it leads to deadlock.
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*/
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status = smbXsrv_tcon_global_traverse(count_fn, &cs);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0,("count_current_connections: traverse of "
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"smbXsrv_tcon_global.tdb failed - %s\n",
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nt_errstr(status)));
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return 0;
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}
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return cs.curr_connections;
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}
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bool connections_snum_used(struct smbd_server_connection *unused, int snum)
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{
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const struct loadparm_substitution *lp_sub =
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loadparm_s3_global_substitution();
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int active;
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active = count_current_connections(lp_servicename(talloc_tos(), lp_sub, snum),
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true);
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if (active > 0) {
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return true;
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}
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return false;
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}
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