af_link.c revision 1.2.4.2
1 1.2.4.2 mjf /* $NetBSD: af_link.c,v 1.2.4.2 2008/06/02 13:21:22 mjf Exp $ */ 2 1.2.4.2 mjf 3 1.2.4.2 mjf /*- 4 1.2.4.2 mjf * Copyright (c) 2008 David Young. All rights reserved. 5 1.2.4.2 mjf * 6 1.2.4.2 mjf * Redistribution and use in source and binary forms, with or without 7 1.2.4.2 mjf * modification, are permitted provided that the following conditions 8 1.2.4.2 mjf * are met: 9 1.2.4.2 mjf * 1. Redistributions of source code must retain the above copyright 10 1.2.4.2 mjf * notice, this list of conditions and the following disclaimer. 11 1.2.4.2 mjf * 2. Redistributions in binary form must reproduce the above copyright 12 1.2.4.2 mjf * notice, this list of conditions and the following disclaimer in the 13 1.2.4.2 mjf * documentation and/or other materials provided with the distribution. 14 1.2.4.2 mjf * 15 1.2.4.2 mjf * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 1.2.4.2 mjf * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 1.2.4.2 mjf * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 1.2.4.2 mjf * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.2.4.2 mjf * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.2.4.2 mjf * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 1.2.4.2 mjf * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.2.4.2 mjf * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.2.4.2 mjf * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.2.4.2 mjf * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.2.4.2 mjf * SUCH DAMAGE. 26 1.2.4.2 mjf */ 27 1.2.4.2 mjf 28 1.2.4.2 mjf #include <sys/cdefs.h> 29 1.2.4.2 mjf #ifndef lint 30 1.2.4.2 mjf __RCSID("$NetBSD: af_link.c,v 1.2.4.2 2008/06/02 13:21:22 mjf Exp $"); 31 1.2.4.2 mjf #endif /* not lint */ 32 1.2.4.2 mjf 33 1.2.4.2 mjf #include <sys/param.h> 34 1.2.4.2 mjf #include <sys/ioctl.h> 35 1.2.4.2 mjf #include <sys/socket.h> 36 1.2.4.2 mjf 37 1.2.4.2 mjf #include <net/if.h> 38 1.2.4.2 mjf #include <net/if_dl.h> 39 1.2.4.2 mjf 40 1.2.4.2 mjf #include <assert.h> 41 1.2.4.2 mjf #include <err.h> 42 1.2.4.2 mjf #include <errno.h> 43 1.2.4.2 mjf #include <ifaddrs.h> 44 1.2.4.2 mjf #include <netdb.h> 45 1.2.4.2 mjf #include <string.h> 46 1.2.4.2 mjf #include <stdlib.h> 47 1.2.4.2 mjf #include <stdio.h> 48 1.2.4.2 mjf #include <util.h> 49 1.2.4.2 mjf 50 1.2.4.2 mjf #include "env.h" 51 1.2.4.2 mjf #include "extern.h" 52 1.2.4.2 mjf #include "af_link.h" 53 1.2.4.2 mjf #include "af_inetany.h" 54 1.2.4.2 mjf 55 1.2.4.2 mjf void 56 1.2.4.2 mjf link_status(prop_dictionary_t env, prop_dictionary_t oenv, bool force) 57 1.2.4.2 mjf { 58 1.2.4.2 mjf const char *delim, *ifname; 59 1.2.4.2 mjf int i, s; 60 1.2.4.2 mjf struct ifaddrs *ifa, *ifap; 61 1.2.4.2 mjf const struct sockaddr_dl *sdl; 62 1.2.4.2 mjf struct if_laddrreq iflr; 63 1.2.4.2 mjf const uint8_t *octets; 64 1.2.4.2 mjf 65 1.2.4.2 mjf if ((ifname = getifname(env)) == NULL) 66 1.2.4.2 mjf err(EXIT_FAILURE, "%s: getifname", __func__); 67 1.2.4.2 mjf 68 1.2.4.2 mjf if ((s = getsock(AF_LINK)) == -1) 69 1.2.4.2 mjf err(EXIT_FAILURE, "%s: getsock", __func__); 70 1.2.4.2 mjf 71 1.2.4.2 mjf if (getifaddrs(&ifap) == -1) 72 1.2.4.2 mjf err(EXIT_FAILURE, "%s: getifaddrs", __func__); 73 1.2.4.2 mjf 74 1.2.4.2 mjf memset(&iflr, 0, sizeof(iflr)); 75 1.2.4.2 mjf 76 1.2.4.2 mjf strlcpy(iflr.iflr_name, ifname, sizeof(iflr.iflr_name)); 77 1.2.4.2 mjf 78 1.2.4.2 mjf for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { 79 1.2.4.2 mjf if (strcmp(ifname, ifa->ifa_name) != 0) 80 1.2.4.2 mjf continue; 81 1.2.4.2 mjf if (ifa->ifa_addr->sa_family != AF_LINK) 82 1.2.4.2 mjf continue; 83 1.2.4.2 mjf if (ifa->ifa_data != NULL) 84 1.2.4.2 mjf continue; 85 1.2.4.2 mjf 86 1.2.4.2 mjf sdl = satocsdl(ifa->ifa_addr); 87 1.2.4.2 mjf 88 1.2.4.2 mjf memcpy(&iflr.addr, ifa->ifa_addr, MIN(ifa->ifa_addr->sa_len, 89 1.2.4.2 mjf sizeof(iflr.addr))); 90 1.2.4.2 mjf iflr.flags = IFLR_PREFIX; 91 1.2.4.2 mjf iflr.prefixlen = sdl->sdl_alen * NBBY; 92 1.2.4.2 mjf 93 1.2.4.2 mjf if (ioctl(s, SIOCGLIFADDR, &iflr) == -1) 94 1.2.4.2 mjf err(EXIT_FAILURE, "%s: ioctl", __func__); 95 1.2.4.2 mjf 96 1.2.4.2 mjf if ((iflr.flags & IFLR_ACTIVE) != 0) 97 1.2.4.2 mjf continue; 98 1.2.4.2 mjf 99 1.2.4.2 mjf octets = (const uint8_t *)&sdl->sdl_data[sdl->sdl_nlen]; 100 1.2.4.2 mjf 101 1.2.4.2 mjf delim = "\tlink "; 102 1.2.4.2 mjf for (i = 0; i < sdl->sdl_alen; i++) { 103 1.2.4.2 mjf printf("%s%02" PRIx8, delim, octets[i]); 104 1.2.4.2 mjf delim = ":"; 105 1.2.4.2 mjf } 106 1.2.4.2 mjf printf("\n"); 107 1.2.4.2 mjf } 108 1.2.4.2 mjf } 109 1.2.4.2 mjf 110 1.2.4.2 mjf static int 111 1.2.4.2 mjf link_pre_aifaddr(prop_dictionary_t env, struct afparam *param) 112 1.2.4.2 mjf { 113 1.2.4.2 mjf bool active; 114 1.2.4.2 mjf struct if_laddrreq *iflr = param->req.buf; 115 1.2.4.2 mjf 116 1.2.4.2 mjf if (prop_dictionary_get_bool(env, "active", &active) && active) 117 1.2.4.2 mjf iflr->flags |= IFLR_ACTIVE; 118 1.2.4.2 mjf 119 1.2.4.2 mjf return 0; 120 1.2.4.2 mjf } 121 1.2.4.2 mjf 122 1.2.4.2 mjf void 123 1.2.4.2 mjf link_commit_address(prop_dictionary_t env, prop_dictionary_t oenv) 124 1.2.4.2 mjf { 125 1.2.4.2 mjf struct if_laddrreq dgreq = { 126 1.2.4.2 mjf .addr = { 127 1.2.4.2 mjf .ss_family = AF_LINK, 128 1.2.4.2 mjf .ss_len = sizeof(dgreq.addr), 129 1.2.4.2 mjf }, 130 1.2.4.2 mjf }; 131 1.2.4.2 mjf struct if_laddrreq req = { 132 1.2.4.2 mjf .addr = { 133 1.2.4.2 mjf .ss_family = AF_LINK, 134 1.2.4.2 mjf .ss_len = sizeof(req.addr), 135 1.2.4.2 mjf } 136 1.2.4.2 mjf }; 137 1.2.4.2 mjf struct afparam linkparam = { 138 1.2.4.2 mjf .req = BUFPARAM(req) 139 1.2.4.2 mjf , .dgreq = BUFPARAM(dgreq) 140 1.2.4.2 mjf , .name = { 141 1.2.4.2 mjf {.buf = dgreq.iflr_name, 142 1.2.4.2 mjf .buflen = sizeof(dgreq.iflr_name)}, 143 1.2.4.2 mjf {.buf = req.iflr_name, 144 1.2.4.2 mjf .buflen = sizeof(req.iflr_name)} 145 1.2.4.2 mjf } 146 1.2.4.2 mjf , .dgaddr = BUFPARAM(dgreq.addr) 147 1.2.4.2 mjf , .addr = BUFPARAM(req.addr) 148 1.2.4.2 mjf , .aifaddr = IFADDR_PARAM(SIOCALIFADDR) 149 1.2.4.2 mjf , .difaddr = IFADDR_PARAM(SIOCDLIFADDR) 150 1.2.4.2 mjf , .gifaddr = IFADDR_PARAM(0) 151 1.2.4.2 mjf , .pre_aifaddr = link_pre_aifaddr 152 1.2.4.2 mjf }; 153 1.2.4.2 mjf commit_address(env, oenv, &linkparam); 154 1.2.4.2 mjf } 155
Indexes created Tue Oct 21 16:10:11 GMT 2025