1/*	$NetBSD: blacklist.c,v 1.5 2015/01/22 16:19:53 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#ifdef HAVE_CONFIG_H
32#include "config.h"
33#endif
34
35#include <sys/cdefs.h>
36__RCSID("$NetBSD: blacklist.c,v 1.5 2015/01/22 16:19:53 christos Exp $");
37
38#include <stdio.h>
39#include <bl.h>
40
41#include <stdarg.h>
42#include <errno.h>
43#include <string.h>
44#include <stdlib.h>
45#include <syslog.h>
46
47int
48blacklist_sa(int action, int rfd, const struct sockaddr *sa, socklen_t salen,
49    const char *msg)
50{
51	struct blacklist *bl;
52	int rv;
53	if ((bl = blacklist_open()) == NULL)
54		return -1;
55	rv = blacklist_sa_r(bl, action, rfd, sa, salen, msg);
56	blacklist_close(bl);
57	return rv;
58}
59
60int
61blacklist_sa_r(struct blacklist *bl, int action, int rfd,
62	const struct sockaddr *sa, socklen_t slen, const char *msg)
63{
64	int internal_action;
65
66	/* internal values are not the same as user application values */
67	switch (action) {
68	case BLACKLIST_AUTH_FAIL:
69		internal_action = BL_ADD;
70		break;
71	case BLACKLIST_AUTH_OK:
72		internal_action = BL_DELETE;
73		break;
74	case BLACKLIST_ABUSIVE_BEHAVIOR:
75		internal_action = BL_ABUSE;
76		break;
77	case BLACKLIST_BAD_USER:
78		internal_action = BL_BADUSER;
79		break;
80	default:
81		internal_action = BL_INVALID;
82		break;
83	}
84	return bl_send(bl, internal_action, rfd, sa, slen, msg);
85}
86
87int
88blacklist(int action, int rfd, const char *msg)
89{
90	return blacklist_sa(action, rfd, NULL, 0, msg);
91}
92
93int
94blacklist_r(struct blacklist *bl, int action, int rfd, const char *msg)
95{
96	return blacklist_sa_r(bl, action, rfd, NULL, 0, msg);
97}
98
99struct blacklist *
100blacklist_open(void) {
101	return bl_create(false, NULL, vsyslog);
102}
103
104void
105blacklist_close(struct blacklist *bl)
106{
107	bl_destroy(bl);
108}
109