freebsd-nq/crypto/openssh/blacklist.c
Ed Maste 0f9bafdfc3 openssh: pass ssh context to BLACKLIST_NOTIFY
Fixes:		19261079b7 ("openssh: update to OpenSSH v8.7p1")
Sponsored by:	The FreeBSD Foundation
2021-09-14 13:44:39 -04:00

98 lines
2.8 KiB
C

/*-
* Copyright (c) 2015 The NetBSD Foundation, Inc.
* Copyright (c) 2016 The FreeBSD Foundation, Inc.
* All rights reserved.
*
* Portions of this software were developed by Kurt Lidl
* under sponsorship from the FreeBSD Foundation.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
#include <ctype.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <unistd.h>
#include "ssh.h"
#include "packet.h"
#include "log.h"
#include "misc.h"
#include "servconf.h"
#include <blacklist.h>
#include "blacklist_client.h"
static struct blacklist *blstate = NULL;
/* import */
extern ServerOptions options;
/* internal definition from bl.h */
struct blacklist *bl_create(bool, char *, void (*)(int, const char *, va_list));
/* impedence match vsyslog() to sshd's internal logging levels */
void
im_log(int priority, const char *message, va_list args)
{
LogLevel imlevel;
switch (priority) {
case LOG_ERR:
imlevel = SYSLOG_LEVEL_ERROR;
break;
case LOG_DEBUG:
imlevel = SYSLOG_LEVEL_DEBUG1;
break;
case LOG_INFO:
imlevel = SYSLOG_LEVEL_INFO;
break;
default:
imlevel = SYSLOG_LEVEL_DEBUG2;
}
do_log2(imlevel, message, args);
}
void
blacklist_init(void)
{
if (options.use_blacklist)
blstate = bl_create(false, NULL, im_log);
}
void
blacklist_notify(struct ssh *ssh, int action, const char *msg)
{
if (blstate != NULL && ssh_packet_connection_is_on_socket(ssh))
(void)blacklist_r(blstate, action,
ssh_packet_get_connection_in(ssh), msg);
}