Introduce new sysctls for obtaining interface-specific addresses:
- net.sdl for the active link-layer adddress (the MAC) - net.ether.multicast for the Ethernet multicast addresses - net.inet6.multicast for the IPv6 multicast groups - net.inet6.multicast_kludge for temporarily removed multicast groups Use this sysctls for replacing the kmem grovelling in ifmcstat(8).
This commit is contained in:
joerg
parent
e6ff3b17b8
commit
539332ecd5
45
sys/net/if.c
45
sys/net/if.c
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@ -1,4 +1,4 @@
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/* $NetBSD: if.c,v 1.279 2014/06/09 12:57:04 rmind Exp $ */
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/* $NetBSD: if.c,v 1.280 2014/06/10 09:38:30 joerg Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
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@ -90,7 +90,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.279 2014/06/09 12:57:04 rmind Exp $");
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__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.280 2014/06/10 09:38:30 joerg Exp $");
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#include "opt_inet.h"
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@ -2457,3 +2457,44 @@ sysctl_net_pktq_setup(struct sysctllog **clog, int pf)
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CTL_NET, pf, ipn, qid, IFQCTL_DROPS, CTL_EOL);
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}
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#endif /* INET || INET6 */
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static int
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if_sdl_sysctl(SYSCTLFN_ARGS)
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{
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struct ifnet *ifp;
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const struct sockaddr_dl *sdl;
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if (namelen != 1)
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return EINVAL;
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ifp = if_byindex(name[0]);
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if (ifp == NULL)
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return ENODEV;
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sdl = ifp->if_sadl;
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if (sdl == NULL) {
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*oldlenp = 0;
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return 0;
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}
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if (oldp == NULL) {
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*oldlenp = sdl->sdl_alen;
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return 0;
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}
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if (*oldlenp >= sdl->sdl_alen)
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*oldlenp = sdl->sdl_alen;
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return sysctl_copyout(l, &sdl->sdl_data[sdl->sdl_nlen], oldp, *oldlenp);
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}
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SYSCTL_SETUP(sysctl_net_sdl_setup, "sysctl net.sdl subtree setup")
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{
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const struct sysctlnode *rnode = NULL;
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sysctl_createv(clog, 0, NULL, &rnode,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "sdl",
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SYSCTL_DESCR("Get active link-layer address"),
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if_sdl_sysctl, 0, NULL, 0,
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CTL_NET, CTL_CREATE, CTL_EOL);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: if_ether.h,v 1.62 2014/04/23 23:17:22 pooka Exp $ */
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/* $NetBSD: if_ether.h,v 1.63 2014/06/10 09:38:30 joerg Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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@ -228,6 +228,12 @@ struct ether_multi {
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LIST_ENTRY(ether_multi) enm_list;
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};
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struct ether_multi_sysctl {
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u_int enm_refcount;
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uint8_t enm_addrlo[ETHER_ADDR_LEN];
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uint8_t enm_addrhi[ETHER_ADDR_LEN];
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};
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/*
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* Structure used by macros below to remember position when stepping through
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* all of the ether_multi records.
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@ -1,4 +1,4 @@
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/* $NetBSD: if_ethersubr.c,v 1.199 2014/06/05 23:48:16 rmind Exp $ */
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/* $NetBSD: if_ethersubr.c,v 1.200 2014/06/10 09:38:30 joerg Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -61,7 +61,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ethersubr.c,v 1.199 2014/06/05 23:48:16 rmind Exp $");
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__KERNEL_RCSID(0, "$NetBSD: if_ethersubr.c,v 1.200 2014/06/10 09:38:30 joerg Exp $");
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#include "opt_inet.h"
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#include "opt_atalk.h"
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@ -78,6 +78,7 @@ __KERNEL_RCSID(0, "$NetBSD: if_ethersubr.c,v 1.199 2014/06/05 23:48:16 rmind Exp
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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@ -1489,3 +1490,70 @@ ether_ioctl(struct ifnet *ifp, u_long cmd, void *data)
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}
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return 0;
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}
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static int
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ether_multicast_sysctl(SYSCTLFN_ARGS)
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{
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struct ether_multi *enm;
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struct ether_multi_sysctl addr;
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struct ifnet *ifp;
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struct ethercom *ec;
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int error;
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size_t written;
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if (namelen != 1)
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return EINVAL;
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ifp = if_byindex(name[0]);
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if (ifp == NULL)
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return ENODEV;
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if (ifp->if_type != IFT_ETHER) {
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*oldlenp = 0;
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return 0;
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}
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ec = (struct ethercom *)ifp;
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if (oldp == NULL) {
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*oldlenp = ec->ec_multicnt * sizeof(addr);
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return 0;
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}
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memset(&addr, 0, sizeof(addr));
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error = 0;
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written = 0;
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LIST_FOREACH(enm, &ec->ec_multiaddrs, enm_list) {
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if (written + sizeof(addr) > *oldlenp)
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break;
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addr.enm_refcount = enm->enm_refcount;
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memcpy(addr.enm_addrlo, enm->enm_addrlo, ETHER_ADDR_LEN);
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memcpy(addr.enm_addrhi, enm->enm_addrhi, ETHER_ADDR_LEN);
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error = sysctl_copyout(l, &addr, oldp, sizeof(addr));
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if (error)
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break;
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written += sizeof(addr);
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oldp = (char *)oldp + sizeof(addr);
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}
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*oldlenp = written;
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return error;
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}
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SYSCTL_SETUP(sysctl_net_ether_setup, "sysctl net.ether subtree setup")
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{
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const struct sysctlnode *rnode = NULL;
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sysctl_createv(clog, 0, NULL, &rnode,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "ether",
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SYSCTL_DESCR("Ethernet-specific information"),
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NULL, 0, NULL, 0,
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CTL_NET, CTL_CREATE, CTL_EOL);
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sysctl_createv(clog, 0, &rnode, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "multicast",
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SYSCTL_DESCR("multicast addresses"),
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ether_multicast_sysctl, 0, NULL, 0,
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CTL_CREATE, CTL_EOL);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: mld6.c,v 1.56 2014/06/02 11:02:20 joerg Exp $ */
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/* $NetBSD: mld6.c,v 1.57 2014/06/10 09:38:30 joerg Exp $ */
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/* $KAME: mld6.c,v 1.25 2001/01/16 14:14:18 itojun Exp $ */
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/*
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@ -102,7 +102,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mld6.c,v 1.56 2014/06/02 11:02:20 joerg Exp $");
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__KERNEL_RCSID(0, "$NetBSD: mld6.c,v 1.57 2014/06/10 09:38:30 joerg Exp $");
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#include "opt_inet.h"
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@ -897,3 +897,146 @@ in6_purgemkludge(struct ifnet *ifp)
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LIST_REMOVE(mk, mk_entry);
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free(mk, M_IPMADDR);
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}
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static int
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in6_mkludge_sysctl(SYSCTLFN_ARGS)
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{
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struct multi6_kludge *mk;
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struct in6_multi *in6m;
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int error;
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uint32_t tmp;
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size_t written;
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if (namelen != 1)
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return EINVAL;
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if (oldp == NULL) {
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*oldlenp = 0;
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LIST_FOREACH(mk, &in6_mk, mk_entry) {
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if (mk->mk_ifp->if_index == name[0])
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continue;
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LIST_FOREACH(in6m, &mk->mk_head, in6m_entry) {
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*oldlenp += sizeof(struct in6_addr) +
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sizeof(uint32_t);
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}
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}
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return 0;
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}
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error = 0;
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written = 0;
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LIST_FOREACH(mk, &in6_mk, mk_entry) {
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if (mk->mk_ifp->if_index == name[0])
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continue;
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LIST_FOREACH(in6m, &mk->mk_head, in6m_entry) {
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if (written + sizeof(struct in6_addr) +
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sizeof(uint32_t) > *oldlenp)
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goto done;
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error = sysctl_copyout(l, &in6m->in6m_addr,
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oldp, sizeof(struct in6_addr));
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if (error)
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goto done;
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oldp = (char *)oldp + sizeof(struct in6_addr);
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written += sizeof(struct in6_addr);
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tmp = in6m->in6m_refcount;
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error = sysctl_copyout(l, &tmp, oldp, sizeof(tmp));
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if (error)
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goto done;
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oldp = (char *)oldp + sizeof(tmp);
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written += sizeof(tmp);
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}
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}
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done:
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*oldlenp = written;
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return error;
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}
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static int
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in6_multicast_sysctl(SYSCTLFN_ARGS)
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{
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struct ifnet *ifp;
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struct ifaddr *ifa;
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struct in6_ifaddr *ifa6;
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struct in6_multi *in6m;
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uint32_t tmp;
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int error;
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size_t written;
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if (namelen != 1)
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return EINVAL;
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ifp = if_byindex(name[0]);
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if (ifp == NULL)
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return ENODEV;
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if (oldp == NULL) {
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*oldlenp = 0;
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TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list) {
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if (ifa->ifa_addr == NULL)
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continue;
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if (ifa->ifa_addr->sa_family != AF_INET6)
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continue;
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ifa6 = (struct in6_ifaddr *)ifa;
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LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) {
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*oldlenp += 2 * sizeof(struct in6_addr) +
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sizeof(uint32_t);
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}
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}
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return 0;
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}
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error = 0;
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written = 0;
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TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list) {
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if (ifa->ifa_addr == NULL)
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continue;
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if (ifa->ifa_addr->sa_family != AF_INET6)
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continue;
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ifa6 = (struct in6_ifaddr *)ifa;
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LIST_FOREACH(in6m, &ifa6->ia6_multiaddrs, in6m_entry) {
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if (written + 2 * sizeof(struct in6_addr) +
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sizeof(uint32_t) > *oldlenp)
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goto done;
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error = sysctl_copyout(l, &ifa6->ia_addr.sin6_addr,
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oldp, sizeof(struct in6_addr));
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if (error)
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goto done;
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oldp = (char *)oldp + sizeof(struct in6_addr);
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written += sizeof(struct in6_addr);
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error = sysctl_copyout(l, &in6m->in6m_addr,
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oldp, sizeof(struct in6_addr));
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if (error)
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goto done;
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oldp = (char *)oldp + sizeof(struct in6_addr);
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written += sizeof(struct in6_addr);
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tmp = in6m->in6m_refcount;
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error = sysctl_copyout(l, &tmp, oldp, sizeof(tmp));
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if (error)
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goto done;
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oldp = (char *)oldp + sizeof(tmp);
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written += sizeof(tmp);
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}
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}
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done:
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*oldlenp = written;
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return error;
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}
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SYSCTL_SETUP(sysctl_in6_mklude_setup, "sysctl net.inet6.multicast_kludge subtree setup")
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{
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "multicast",
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SYSCTL_DESCR("Multicast information"),
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in6_multicast_sysctl, 0, NULL, 0,
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CTL_NET, PF_INET6, CTL_CREATE, CTL_EOL);
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "multicast_kludge",
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SYSCTL_DESCR("multicast kludge information"),
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in6_mkludge_sysctl, 0, NULL, 0,
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CTL_NET, PF_INET6, CTL_CREATE, CTL_EOL);
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}
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@ -1,11 +1,11 @@
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# $NetBSD: Makefile,v 1.3 2002/08/02 03:58:10 simonb Exp $
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# $NetBSD: Makefile,v 1.4 2014/06/10 09:38:30 joerg Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/5/93
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PROG= ifmcstat
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MAN= ifmcstat.8
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LDADD= -lkvm
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DPADD= ${LIBKVM}
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LDADD+= -lutil
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DPADD+= ${LIBUTIL}
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CPPFLAGS+= -DINET6
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@ -1,4 +1,4 @@
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/* $NetBSD: ifmcstat.c,v 1.16 2014/05/30 22:20:48 joerg Exp $ */
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/* $NetBSD: ifmcstat.c,v 1.17 2014/06/10 09:38:30 joerg Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -28,7 +28,11 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: ifmcstat.c,v 1.17 2014/06/10 09:38:30 joerg Exp $");
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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@ -36,9 +40,11 @@
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#include <nlist.h>
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#include <string.h>
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#include <limits.h>
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#include <util.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_dl.h>
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@ -49,34 +55,12 @@
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#include <netdb.h>
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kvm_t *kvmd;
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struct nlist nl[] = {
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#define N_IFNET_LIST 0
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{ "_ifnet_list", 0, 0, 0, 0 },
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#define N_IN6_MK 1
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{ "_in6_mk", 0, 0, 0, 0 },
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{ "", 0, 0, 0, 0 },
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};
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static const char *inet6_n2a(struct in6_addr *);
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static char *ifname(struct ifnet *);
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static void kread(u_long, void *, int);
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static void acmc(struct ether_multi *);
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static void if6_addrlist(struct ifaddr *);
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static void in6_multilist(struct in6_multi *);
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#define KREAD(addr, buf, type) \
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kread((u_long)addr, (void *)buf, sizeof(type))
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struct multi6_kludge {
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LIST_ENTRY(multi6_kludge) mk_entry;
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struct ifnet *mk_ifp;
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struct in6_multihead mk_head;
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};
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static const char *inet6_n2a(void *);
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static void print_ether_mcast(u_short);
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static void print_inet6_mcast(u_short, const char *);
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static const char *
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inet6_n2a(struct in6_addr *p)
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inet6_n2a(void *p)
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{
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static char buf[NI_MAXHOST];
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struct sockaddr_in6 sin6;
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|
|
@ -85,7 +69,7 @@ inet6_n2a(struct in6_addr *p)
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memset(&sin6, 0, sizeof(sin6));
|
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sin6.sin6_family = AF_INET6;
|
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sin6.sin6_len = sizeof(struct sockaddr_in6);
|
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sin6.sin6_addr = *p;
|
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memcpy(&sin6.sin6_addr, p, sizeof(sin6.sin6_addr));
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inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL|
|
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INET6_IS_ADDR_MC_LINKLOCAL);
|
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if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
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|
|
@ -98,149 +82,174 @@ inet6_n2a(struct in6_addr *p)
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int
|
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main(void)
|
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{
|
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char buf[_POSIX2_LINE_MAX], ifnam[IFNAMSIZ];
|
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struct ifnet *ifp, *nifp, ifnet;
|
||||
struct ethercom ec;
|
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union {
|
||||
struct sockaddr_storage st;
|
||||
struct sockaddr_dl sdl;
|
||||
} su;
|
||||
struct sockaddr_dl *sdlp;
|
||||
sdlp = &su.sdl;
|
||||
struct if_nameindex *ifps;
|
||||
size_t i;
|
||||
|
||||
if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
|
||||
perror("kvm_openfiles");
|
||||
exit(1);
|
||||
}
|
||||
if (kvm_nlist(kvmd, nl) < 0) {
|
||||
perror("kvm_nlist");
|
||||
exit(1);
|
||||
}
|
||||
if (nl[N_IFNET_LIST].n_value == 0) {
|
||||
printf("symbol %s not found\n", nl[N_IFNET_LIST].n_name);
|
||||
exit(1);
|
||||
}
|
||||
KREAD(nl[N_IFNET_LIST].n_value, &ifp, struct ifnet *);
|
||||
while (ifp) {
|
||||
KREAD(ifp, &ifnet, struct ifnet);
|
||||
printf("%s:\n", if_indextoname(ifnet.if_index, ifnam));
|
||||
|
||||
if6_addrlist(ifnet.if_addrlist.tqh_first);
|
||||
nifp = ifnet.if_list.tqe_next;
|
||||
|
||||
KREAD(ifnet.if_sadl, sdlp, struct sockaddr_dl);
|
||||
if (sdlp->sdl_type == IFT_ETHER) {
|
||||
/* If we didn't get all of it, try again */
|
||||
if (sdlp->sdl_len > sizeof(struct sockaddr_dl))
|
||||
kread((u_long)ifnet.if_sadl, (void *)sdlp, sdlp->sdl_len);
|
||||
printf("\tenaddr %s",
|
||||
ether_ntoa((struct ether_addr *)LLADDR(sdlp)));
|
||||
KREAD(ifp, &ec, struct ethercom);
|
||||
printf(" multicnt %d", ec.ec_multicnt);
|
||||
acmc(ec.ec_multiaddrs.lh_first);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
ifp = nifp;
|
||||
ifps = if_nameindex();
|
||||
if (ifps == NULL)
|
||||
errx(1, "failed to obtain list of interfaces");
|
||||
for (i = 0; ifps[i].if_name != NULL; ++i) {
|
||||
printf("%s:\n", ifps[i].if_name);
|
||||
print_inet6_mcast(ifps[i].if_index, ifps[i].if_name);
|
||||
print_ether_mcast(ifps[i].if_index);
|
||||
}
|
||||
if_freenameindex(ifps);
|
||||
|
||||
exit(0);
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
static char *
|
||||
ifname(struct ifnet *ifp)
|
||||
static void *
|
||||
fetch_sysctl(size_t *len, int oids[], size_t oidlen, const char *msg)
|
||||
{
|
||||
static char buf[BUFSIZ];
|
||||
struct ifnet ifnet;
|
||||
void *data;
|
||||
|
||||
KREAD(ifp, &ifnet, struct ifnet);
|
||||
strncpy(buf, ifnet.if_xname, BUFSIZ);
|
||||
return buf;
|
||||
}
|
||||
*len = 0;
|
||||
data = NULL;
|
||||
|
||||
static void
|
||||
kread(u_long addr, void *buf, int len)
|
||||
{
|
||||
if (kvm_read(kvmd, addr, buf, len) != len) {
|
||||
perror("kvm_read");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
acmc(struct ether_multi *am)
|
||||
{
|
||||
struct ether_multi em;
|
||||
|
||||
while (am) {
|
||||
KREAD(am, &em, struct ether_multi);
|
||||
|
||||
printf("\n\t\t");
|
||||
printf("%s -- ", ether_ntoa((struct ether_addr *)em.enm_addrlo));
|
||||
printf("%s ", ether_ntoa((struct ether_addr *)&em.enm_addrhi));
|
||||
printf("%d", em.enm_refcount);
|
||||
am = em.enm_list.le_next;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
if6_addrlist(struct ifaddr *ifap)
|
||||
{
|
||||
struct ifaddr ifa;
|
||||
struct sockaddr sa;
|
||||
struct in6_ifaddr if6a;
|
||||
struct in6_multi *mc = 0;
|
||||
struct ifaddr *ifap0;
|
||||
|
||||
ifap0 = ifap;
|
||||
while (ifap) {
|
||||
KREAD(ifap, &ifa, struct ifaddr);
|
||||
if (ifa.ifa_addr == NULL)
|
||||
goto nextifap;
|
||||
KREAD(ifa.ifa_addr, &sa, struct sockaddr);
|
||||
if (sa.sa_family != PF_INET6)
|
||||
goto nextifap;
|
||||
KREAD(ifap, &if6a, struct in6_ifaddr);
|
||||
printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
|
||||
mc = mc ? mc : if6a.ia6_multiaddrs.lh_first;
|
||||
nextifap:
|
||||
ifap = ifa.ifa_list.tqe_next;
|
||||
}
|
||||
if (mc)
|
||||
in6_multilist(mc);
|
||||
if (nl[N_IN6_MK].n_value != 0) {
|
||||
LIST_HEAD(in6_mktype, multi6_kludge) in6_mk;
|
||||
struct multi6_kludge *mkp, mk;
|
||||
char *nam;
|
||||
|
||||
KREAD(nl[N_IN6_MK].n_value, &in6_mk, struct in6_mktype);
|
||||
KREAD(ifap0, &ifa, struct ifaddr);
|
||||
|
||||
nam = strdup(ifname(ifa.ifa_ifp));
|
||||
|
||||
for (mkp = in6_mk.lh_first; mkp; mkp = mk.mk_entry.le_next) {
|
||||
KREAD(mkp, &mk, struct multi6_kludge);
|
||||
if (strcmp(nam, ifname(mk.mk_ifp)) == 0 &&
|
||||
mk.mk_head.lh_first) {
|
||||
printf("\t(on kludge entry for %s)\n", nam);
|
||||
in6_multilist(mk.mk_head.lh_first);
|
||||
}
|
||||
for (;;) {
|
||||
if (sysctl(oids, oidlen, data, len, NULL, 0) == 0) {
|
||||
if (data != NULL || len == 0)
|
||||
return data;
|
||||
errno = ENOMEM;
|
||||
}
|
||||
|
||||
free(nam);
|
||||
free(data);
|
||||
if (errno == ENOMEM) {
|
||||
data = emalloc(*len);
|
||||
continue;
|
||||
}
|
||||
if (errno != ENODEV)
|
||||
warn("%s", msg);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
in6_multilist(struct in6_multi *mc)
|
||||
print_hwaddr(const uint8_t *hwaddr, size_t len)
|
||||
{
|
||||
struct in6_multi multi;
|
||||
|
||||
while (mc) {
|
||||
KREAD(mc, &multi, struct in6_multi);
|
||||
printf("\t\tgroup %s", inet6_n2a(&multi.in6m_addr));
|
||||
printf(" refcnt %u\n", multi.in6m_refcount);
|
||||
mc = multi.in6m_entry.le_next;
|
||||
}
|
||||
while (len)
|
||||
printf("%02x%s", *hwaddr++, len-- == 0 ? "" : ":");
|
||||
}
|
||||
|
||||
static void
|
||||
print_ether_mcast(u_short ifindex)
|
||||
{
|
||||
static int ems_oids[4], sdl_oids[3];
|
||||
size_t i, ems_len, sdl_len;
|
||||
void *hwaddr;
|
||||
struct ether_multi_sysctl *ems;
|
||||
|
||||
if (ems_oids[0] == 0) {
|
||||
size_t oidlen = __arraycount(ems_oids);
|
||||
if (sysctlnametomib("net.ether.multicast", ems_oids, &oidlen) == -1)
|
||||
errx(1, "net.ether.multicast not found");
|
||||
if (oidlen != 3)
|
||||
errx(1, "Wrong OID path for net.ether.multicast");
|
||||
}
|
||||
|
||||
if (sdl_oids[0] == 0) {
|
||||
size_t oidlen = __arraycount(sdl_oids);
|
||||
if (sysctlnametomib("net.sdl", sdl_oids, &oidlen) == -1)
|
||||
errx(1, "net.sdl not found");
|
||||
if (oidlen != 2)
|
||||
errx(1, "Wrong OID path for net.sdl");
|
||||
}
|
||||
|
||||
sdl_oids[2] = ifindex;
|
||||
hwaddr = fetch_sysctl(&sdl_len, sdl_oids, 3, "failed to read net.sdl");
|
||||
|
||||
if (sdl_len == 0) {
|
||||
free(hwaddr);
|
||||
return;
|
||||
}
|
||||
|
||||
ems_oids[3] = ifindex;
|
||||
ems = fetch_sysctl(&ems_len, ems_oids, 4,
|
||||
"failed to read net.ether.multicast");
|
||||
ems_len /= sizeof(*ems);
|
||||
|
||||
printf("\tenaddr ");
|
||||
print_hwaddr(hwaddr, sdl_len);
|
||||
printf(" multicnt %zu\n", ems_len);
|
||||
|
||||
for (i = 0; i < ems_len; ++i) {
|
||||
printf("\t\t");
|
||||
print_hwaddr(ems[i].enm_addrlo, sizeof(ems[i].enm_addrlo));
|
||||
printf(" -- ");
|
||||
print_hwaddr(ems[i].enm_addrhi, sizeof(ems[i].enm_addrhi));
|
||||
printf(" %d\n", ems[i].enm_refcount);
|
||||
}
|
||||
free(ems);
|
||||
free(hwaddr);
|
||||
}
|
||||
|
||||
static void
|
||||
print_inet6_mcast(u_short ifindex, const char *ifname)
|
||||
{
|
||||
static int mcast_oids[4], kludge_oids[4];
|
||||
const char *addr;
|
||||
uint8_t *mcast_addrs, *kludge_addrs, *p, *last_p;
|
||||
uint32_t refcnt;
|
||||
size_t len;
|
||||
|
||||
if (mcast_oids[0] == 0) {
|
||||
size_t oidlen = __arraycount(mcast_oids);
|
||||
if (sysctlnametomib("net.inet6.multicast", mcast_oids,
|
||||
&oidlen) == -1)
|
||||
errx(1, "net.inet6.multicast not found");
|
||||
if (oidlen != 3)
|
||||
errx(1, "Wrong OID path for net.inet6.multicast");
|
||||
}
|
||||
|
||||
if (kludge_oids[0] == 0) {
|
||||
size_t oidlen = __arraycount(kludge_oids);
|
||||
if (sysctlnametomib("net.inet6.multicast_kludge", kludge_oids,
|
||||
&oidlen) == -1)
|
||||
errx(1, "net.inet6.multicast_kludge not found");
|
||||
if (oidlen != 3)
|
||||
errx(1, "Wrong OID path for net.inet6.multicast_kludge");
|
||||
}
|
||||
|
||||
mcast_oids[3] = ifindex;
|
||||
kludge_oids[3] = ifindex;
|
||||
|
||||
mcast_addrs = fetch_sysctl(&len, mcast_oids, 4,
|
||||
"failed to read net.inet6.multicast");
|
||||
if (len) {
|
||||
p = mcast_addrs;
|
||||
last_p = NULL;
|
||||
while (len >= 2 * sizeof(struct in6_addr) + sizeof(uint32_t)) {
|
||||
if (last_p == NULL ||
|
||||
memcmp(p, last_p, sizeof(struct in6_addr)))
|
||||
printf("\tinet6 %s\n", inet6_n2a(p));
|
||||
last_p = p;
|
||||
p += sizeof(struct in6_addr);
|
||||
addr = inet6_n2a(p);
|
||||
p += sizeof(struct in6_addr);
|
||||
memcpy(&refcnt, p, sizeof(refcnt));
|
||||
p += sizeof(refcnt);
|
||||
printf("\t\tgroup %s refcount %" PRIu32 "\n", addr,
|
||||
refcnt);
|
||||
len -= 2 * sizeof(struct in6_addr) + sizeof(uint32_t);
|
||||
}
|
||||
}
|
||||
free(mcast_addrs);
|
||||
|
||||
kludge_addrs = fetch_sysctl(&len, kludge_oids, 4,
|
||||
"failed to read net.inet6.multicast_kludge");
|
||||
if (len) {
|
||||
printf("\t(on kludge entry for %s)\n", ifname);
|
||||
p = kludge_addrs;
|
||||
while (len >= sizeof(struct in6_addr) + sizeof(uint32_t)) {
|
||||
addr = inet6_n2a(p);
|
||||
p += sizeof(struct in6_addr);
|
||||
memcpy(&refcnt, p, sizeof(refcnt));
|
||||
p += sizeof(refcnt);
|
||||
printf("\t\tgroup %s refcount %" PRIu32 "\n", addr,
|
||||
refcnt);
|
||||
len -= sizeof(struct in6_addr) + sizeof(uint32_t);
|
||||
}
|
||||
}
|
||||
free(kludge_addrs);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue