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crypto/openssh/blacklist.c
- This file was added.
/*- | |||||
* 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_client.h" | |||||
#include <blacklist.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_log(imlevel, message, args); | |||||
} | |||||
void | |||||
blacklist_init(void) | |||||
{ | |||||
if (options.use_blacklist) | |||||
blstate = bl_create(false, NULL, im_log); | |||||
} | |||||
void | |||||
blacklist_notify(int action) | |||||
{ | |||||
int fd; | |||||
if (blstate == NULL) | |||||
return; | |||||
fd = packet_get_connection_in(); | |||||
if (!packet_connection_is_on_socket()) | |||||
logit("packet_connection_is_on_socket: false (fd = %d)", fd); | |||||
(void)blacklist_r(blstate, action, fd, "ssh"); | |||||
} |