1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char rcsid[] =
| 1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char rcsid[] =
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32 "$FreeBSD: head/sbin/ifconfig/af_link.c 138593 2004-12-08 19:18:07Z sam $";
| 32 "$FreeBSD: head/sbin/ifconfig/af_link.c 139494 2004-12-31 19:46:27Z sam $";
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33#endif /* not lint */ 34 35#include <sys/types.h> 36#include <sys/ioctl.h> 37#include <sys/socket.h> 38#include <net/if.h>
| 33#endif /* not lint */ 34 35#include <sys/types.h> 36#include <sys/ioctl.h> 37#include <sys/socket.h> 38#include <net/if.h>
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| 39#include <net/route.h> /* for RTX_IFA */
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39 40#include <err.h> 41#include <stdio.h> 42#include <stdlib.h> 43#include <string.h> 44 45#include <net/if_dl.h> 46#include <net/if_types.h> 47#include <net/ethernet.h> 48 49#include "ifconfig.h" 50 51static struct ifreq link_ridreq; 52 53static void 54link_status(int s __unused, const struct rt_addrinfo *info) 55{
| 40 41#include <err.h> 42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45 46#include <net/if_dl.h> 47#include <net/if_types.h> 48#include <net/ethernet.h> 49 50#include "ifconfig.h" 51 52static struct ifreq link_ridreq; 53 54static void 55link_status(int s __unused, const struct rt_addrinfo *info) 56{
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56 const struct sockaddr_dl *sdl = (const struct sockaddr_dl *)info;
| 57 const struct sockaddr_dl *sdl = 58 (const struct sockaddr_dl *) info->rti_info[RTAX_IFA];
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57
| 59
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58 if (sdl->sdl_alen > 0) {
| 60 if (sdl != NULL && sdl->sdl_alen > 0) {
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59 if (sdl->sdl_type == IFT_ETHER && 60 sdl->sdl_alen == ETHER_ADDR_LEN) 61 printf("\tether %s\n", 62 ether_ntoa((const struct ether_addr *)LLADDR(sdl))); 63 else { 64 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0; 65 66 printf("\tlladdr %s\n", link_ntoa(sdl) + n); 67 } 68 } 69} 70 71static void 72link_getaddr(const char *addr, int which) 73{ 74 char *temp; 75 struct sockaddr_dl sdl; 76 struct sockaddr *sa = &link_ridreq.ifr_addr; 77 78 if (which != ADDR) 79 errx(1, "can't set link-level netmask or broadcast"); 80 if ((temp = malloc(strlen(addr) + 1)) == NULL) 81 errx(1, "malloc failed"); 82 temp[0] = ':'; 83 strcpy(temp + 1, addr); 84 sdl.sdl_len = sizeof(sdl); 85 link_addr(temp, &sdl); 86 free(temp); 87 if (sdl.sdl_alen > sizeof(sa->sa_data)) 88 errx(1, "malformed link-level address"); 89 sa->sa_family = AF_LINK; 90 sa->sa_len = sdl.sdl_alen; 91 bcopy(LLADDR(&sdl), sa->sa_data, sdl.sdl_alen); 92} 93 94static struct afswtch af_link = { 95 .af_name = "link", 96 .af_af = AF_LINK, 97 .af_status = link_status, 98 .af_getaddr = link_getaddr, 99 .af_aifaddr = SIOCSIFLLADDR, 100 .af_addreq = &link_ridreq, 101}; 102static struct afswtch af_ether = { 103 .af_name = "ether", 104 .af_af = AF_LINK, 105 .af_status = link_status, 106 .af_getaddr = link_getaddr, 107 .af_aifaddr = SIOCSIFLLADDR, 108 .af_addreq = &link_ridreq, 109}; 110static struct afswtch af_lladdr = { 111 .af_name = "lladdr", 112 .af_af = AF_LINK, 113 .af_status = link_status, 114 .af_getaddr = link_getaddr, 115 .af_aifaddr = SIOCSIFLLADDR, 116 .af_addreq = &link_ridreq, 117}; 118 119static __constructor void 120link_ctor(void) 121{ 122 af_register(&af_link); 123 af_register(&af_ether); 124 af_register(&af_lladdr); 125}
| 61 if (sdl->sdl_type == IFT_ETHER && 62 sdl->sdl_alen == ETHER_ADDR_LEN) 63 printf("\tether %s\n", 64 ether_ntoa((const struct ether_addr *)LLADDR(sdl))); 65 else { 66 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0; 67 68 printf("\tlladdr %s\n", link_ntoa(sdl) + n); 69 } 70 } 71} 72 73static void 74link_getaddr(const char *addr, int which) 75{ 76 char *temp; 77 struct sockaddr_dl sdl; 78 struct sockaddr *sa = &link_ridreq.ifr_addr; 79 80 if (which != ADDR) 81 errx(1, "can't set link-level netmask or broadcast"); 82 if ((temp = malloc(strlen(addr) + 1)) == NULL) 83 errx(1, "malloc failed"); 84 temp[0] = ':'; 85 strcpy(temp + 1, addr); 86 sdl.sdl_len = sizeof(sdl); 87 link_addr(temp, &sdl); 88 free(temp); 89 if (sdl.sdl_alen > sizeof(sa->sa_data)) 90 errx(1, "malformed link-level address"); 91 sa->sa_family = AF_LINK; 92 sa->sa_len = sdl.sdl_alen; 93 bcopy(LLADDR(&sdl), sa->sa_data, sdl.sdl_alen); 94} 95 96static struct afswtch af_link = { 97 .af_name = "link", 98 .af_af = AF_LINK, 99 .af_status = link_status, 100 .af_getaddr = link_getaddr, 101 .af_aifaddr = SIOCSIFLLADDR, 102 .af_addreq = &link_ridreq, 103}; 104static struct afswtch af_ether = { 105 .af_name = "ether", 106 .af_af = AF_LINK, 107 .af_status = link_status, 108 .af_getaddr = link_getaddr, 109 .af_aifaddr = SIOCSIFLLADDR, 110 .af_addreq = &link_ridreq, 111}; 112static struct afswtch af_lladdr = { 113 .af_name = "lladdr", 114 .af_af = AF_LINK, 115 .af_status = link_status, 116 .af_getaddr = link_getaddr, 117 .af_aifaddr = SIOCSIFLLADDR, 118 .af_addreq = &link_ridreq, 119}; 120 121static __constructor void 122link_ctor(void) 123{ 124 af_register(&af_link); 125 af_register(&af_ether); 126 af_register(&af_lladdr); 127}
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