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 47 int 48 blacklist_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 60 int 61 blacklist_sa_r(struct blacklist *bl, int action, int rfd, 62 const struct sockaddr *sa, socklen_t slen, const char *msg) 63 { 64 bl_type_t 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 87 int 88 blacklist(int action, int rfd, const char *msg) 89 { 90 return blacklist_sa(action, rfd, NULL, 0, msg); 91 } 92 93 int 94 blacklist_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 99 struct blacklist * 100 blacklist_open(void) { 101 return bl_create(false, NULL, vsyslog); 102 } 103 104 void 105 blacklist_close(struct blacklist *bl) 106 { 107 bl_destroy(bl); 108 } 109