npfext_log.c revision 1.1.2.3
1 1.1.2.3 yamt /* $NetBSD: npfext_log.c,v 1.1.2.3 2014/05/22 11:37:01 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /*- 4 1.1.2.2 yamt * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 1.1.2.2 yamt * All rights reserved. 6 1.1.2.2 yamt * 7 1.1.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 yamt * by Mindaugas Rasiukevicius. 9 1.1.2.2 yamt * 10 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 yamt * modification, are permitted provided that the following conditions 12 1.1.2.2 yamt * are met: 13 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.2.2 yamt * 19 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.1.2.2 yamt */ 31 1.1.2.2 yamt 32 1.1.2.2 yamt #include <sys/cdefs.h> 33 1.1.2.3 yamt __RCSID("$NetBSD: npfext_log.c,v 1.1.2.3 2014/05/22 11:37:01 yamt Exp $"); 34 1.1.2.2 yamt 35 1.1.2.2 yamt #include <sys/types.h> 36 1.1.2.3 yamt #include <sys/socket.h> 37 1.1.2.3 yamt #include <sys/ioctl.h> 38 1.1.2.2 yamt #include <net/if.h> 39 1.1.2.2 yamt 40 1.1.2.3 yamt #include <stdio.h> 41 1.1.2.2 yamt #include <string.h> 42 1.1.2.2 yamt #include <assert.h> 43 1.1.2.2 yamt #include <errno.h> 44 1.1.2.3 yamt #include <err.h> 45 1.1.2.3 yamt #include <unistd.h> 46 1.1.2.2 yamt 47 1.1.2.2 yamt #include <npf.h> 48 1.1.2.2 yamt 49 1.1.2.2 yamt int npfext_log_init(void); 50 1.1.2.2 yamt nl_ext_t * npfext_log_construct(const char *); 51 1.1.2.2 yamt int npfext_log_param(nl_ext_t *, const char *, const char *); 52 1.1.2.2 yamt 53 1.1.2.2 yamt int 54 1.1.2.2 yamt npfext_log_init(void) 55 1.1.2.2 yamt { 56 1.1.2.2 yamt /* Nothing to initialise. */ 57 1.1.2.2 yamt return 0; 58 1.1.2.2 yamt } 59 1.1.2.2 yamt 60 1.1.2.2 yamt nl_ext_t * 61 1.1.2.2 yamt npfext_log_construct(const char *name) 62 1.1.2.2 yamt { 63 1.1.2.2 yamt assert(strcmp(name, "log") == 0); 64 1.1.2.2 yamt return npf_ext_construct(name); 65 1.1.2.2 yamt } 66 1.1.2.2 yamt 67 1.1.2.2 yamt int 68 1.1.2.2 yamt npfext_log_param(nl_ext_t *ext, const char *param, const char *val __unused) 69 1.1.2.2 yamt { 70 1.1.2.3 yamt unsigned int if_idx; 71 1.1.2.2 yamt 72 1.1.2.2 yamt assert(param != NULL); 73 1.1.2.2 yamt 74 1.1.2.2 yamt if_idx = if_nametoindex(param); 75 1.1.2.2 yamt if (if_idx == 0) { 76 1.1.2.3 yamt int s; 77 1.1.2.3 yamt struct ifreq ifr; 78 1.1.2.3 yamt struct ifconf ifc; 79 1.1.2.3 yamt 80 1.1.2.3 yamt if ((s = socket(PF_INET, SOCK_DGRAM, 0)) == -1) { 81 1.1.2.3 yamt warn("Can't create datagram socket for `%s'", param); 82 1.1.2.3 yamt return errno; 83 1.1.2.3 yamt } 84 1.1.2.3 yamt 85 1.1.2.3 yamt memset(&ifr, 0, sizeof(ifr)); 86 1.1.2.3 yamt strlcpy(ifr.ifr_name, param, sizeof(ifr.ifr_name)); 87 1.1.2.3 yamt if (ioctl(s, SIOCIFCREATE, &ifr) == -1) { 88 1.1.2.3 yamt warn("Can't SIOCIFCREATE `%s'", param); 89 1.1.2.3 yamt close(s); 90 1.1.2.3 yamt return errno; 91 1.1.2.3 yamt } 92 1.1.2.3 yamt 93 1.1.2.3 yamt memset(&ifc, 0, sizeof(ifc)); 94 1.1.2.3 yamt strlcpy(ifr.ifr_name, param, sizeof(ifr.ifr_name)); 95 1.1.2.3 yamt if (ioctl(s, SIOCGIFFLAGS, &ifr) == -1) { 96 1.1.2.3 yamt warn("Can't SIOCGIFFLAGS `%s'", param); 97 1.1.2.3 yamt close(s); 98 1.1.2.3 yamt return errno; 99 1.1.2.3 yamt } 100 1.1.2.3 yamt 101 1.1.2.3 yamt ifr.ifr_flags |= IFF_UP; 102 1.1.2.3 yamt if (ioctl(s, SIOCSIFFLAGS, &ifr) == -1) { 103 1.1.2.3 yamt warn("Can't SIOCSIFFLAGS `%s'", param); 104 1.1.2.3 yamt close(s); 105 1.1.2.3 yamt return errno; 106 1.1.2.3 yamt } 107 1.1.2.3 yamt close(s); 108 1.1.2.3 yamt 109 1.1.2.3 yamt if_idx = if_nametoindex(param); 110 1.1.2.3 yamt if (if_idx == 0) 111 1.1.2.3 yamt return EINVAL; 112 1.1.2.2 yamt } 113 1.1.2.2 yamt npf_ext_param_u32(ext, "log-interface", if_idx); 114 1.1.2.2 yamt return 0; 115 1.1.2.2 yamt } 116
Indexes created Sun Nov 02 07:10:05 GMT 2025