64d41a9ba5
Adjust notification points slightly to catch all auth failures, rather than just the ones caused by bad usernames. Modify notification point for bad usernames to send new type of BLACKLIST_BAD_USER. (Support in libblacklist will be forthcoming soon.) Add guards to allow library headers to expose the enum of action values. Reviewed by: des Approved by: des Sponsored by: The FreeBSD Foundation
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*-
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* Copyright (c) 2015 The NetBSD Foundation, Inc.
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* Copyright (c) 2016 The FreeBSD Foundation, Inc.
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* All rights reserved.
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*
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* Portions of this software were developed by Kurt Lidl
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* under sponsorship from the FreeBSD Foundation.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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#include <unistd.h>
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#include "ssh.h"
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#include "packet.h"
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#include "log.h"
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#include "misc.h"
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#include "servconf.h"
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#include <blacklist.h>
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#include "blacklist_client.h"
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static struct blacklist *blstate = NULL;
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/* import */
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extern ServerOptions options;
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/* internal definition from bl.h */
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struct blacklist *bl_create(bool, char *, void (*)(int, const char *, va_list));
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/* impedence match vsyslog() to sshd's internal logging levels */
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void
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im_log(int priority, const char *message, va_list args)
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{
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LogLevel imlevel;
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switch (priority) {
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case LOG_ERR:
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imlevel = SYSLOG_LEVEL_ERROR;
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break;
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case LOG_DEBUG:
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imlevel = SYSLOG_LEVEL_DEBUG1;
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break;
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case LOG_INFO:
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imlevel = SYSLOG_LEVEL_INFO;
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break;
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default:
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imlevel = SYSLOG_LEVEL_DEBUG2;
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}
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do_log(imlevel, message, args);
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}
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void
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blacklist_init(void)
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{
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if (options.use_blacklist)
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blstate = bl_create(false, NULL, im_log);
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}
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void
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blacklist_notify(int action, const char *msg)
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{
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if (blstate != NULL && packet_connection_is_on_socket())
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(void)blacklist_r(blstate, action,
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packet_get_connection_in(), msg);
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}
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