2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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29 * $FreeBSD: src/usr.sbin/ifmcstat/ifmcstat.c,v 1.3.2.2 2001/07/03 11:02:06 ume Exp $
40 #include <sys/types.h>
41 #include <sys/socket.h>
42 #include <sys/queue.h>
45 #include <net/if_var.h>
46 #include <net/if_types.h>
47 #include <net/if_dl.h>
48 #include <netinet/in.h>
50 #include <netinet/if_ether.h>
52 #include <netinet/in_var.h>
53 #include <arpa/inet.h>
65 const char *inet6_n2a __P((struct in6_addr *));
67 char *ifname __P((struct ifnet *));
68 void kread __P((u_long, void *, int));
69 void if6_addrlist __P((struct ifaddr *));
70 void in6_multilist __P((struct in6_multi *));
71 struct in6_multi * in6_multientry __P((struct in6_multi *));
73 #define KREAD(addr, buf, type) \
74 kread((u_long)addr, (void *)buf, sizeof(type))
77 struct multi6_kludge {
78 LIST_ENTRY(multi6_kludge) mk_entry;
80 struct in6_multihead mk_head;
84 const char *inet6_n2a(p)
87 static char buf[NI_MAXHOST];
88 struct sockaddr_in6 sin6;
91 const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
93 const int niflags = NI_NUMERICHOST;
96 memset(&sin6, 0, sizeof(sin6));
97 sin6.sin6_family = AF_INET6;
98 sin6.sin6_len = sizeof(struct sockaddr_in6);
100 if (IN6_IS_ADDR_LINKLOCAL(p) || IN6_IS_ADDR_MC_LINKLOCAL(p)) {
101 scopeid = ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
103 sin6.sin6_scope_id = scopeid;
104 sin6.sin6_addr.s6_addr[2] = 0;
105 sin6.sin6_addr.s6_addr[3] = 0;
108 if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
109 buf, sizeof(buf), NULL, 0, niflags) == 0)
117 char buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ];
118 struct ifnet *ifp, *nifp, ifnet;
119 struct arpcom arpcom;
121 if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
122 perror("kvm_openfiles");
125 if (kvm_nlist(kvmd, nl) < 0) {
129 if (nl[N_IFNET].n_value == 0) {
130 printf("symbol %s not found\n", nl[N_IFNET].n_name);
133 KREAD(nl[N_IFNET].n_value, &ifp, struct ifnet *);
135 KREAD(ifp, &ifnet, struct ifnet);
136 printf("%s:\n", if_indextoname(ifnet.if_index, ifname));
138 if6_addrlist(TAILQ_FIRST(&ifnet.if_addrhead));
139 nifp = ifnet.if_link.tqe_next;
153 static char buf[BUFSIZ];
155 char ifnamebuf[IFNAMSIZ];
157 KREAD(ifp, &ifnet, struct ifnet);
158 KREAD(ifnet.if_name, ifnamebuf, sizeof(ifnamebuf));
159 snprintf(buf, sizeof(buf), "%s%d", ifnamebuf,
160 ifnet.if_unit); /* does snprintf allow overlap copy?? */
164 void kread(addr, buf, len)
169 if (kvm_read(kvmd, addr, buf, len) != len) {
181 struct in6_ifaddr if6a;
182 struct in6_multi *mc = 0;
183 struct ifaddr *ifap0;
187 KREAD(ifap, &ifa, struct ifaddr);
188 if (ifa.ifa_addr == NULL)
190 KREAD(ifa.ifa_addr, &sa, struct sockaddr);
191 if (sa.sa_family != PF_INET6)
193 KREAD(ifap, &if6a, struct in6_ifaddr);
194 printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
196 ifap = ifa.ifa_link.tqe_next;
200 struct ifmultiaddr ifm, *ifmp = 0;
201 struct sockaddr_in6 sin6;
202 struct in6_multi in6m;
203 struct sockaddr_dl sdl;
204 int in6_multilist_done = 0;
206 KREAD(ifap0, &ifa, struct ifaddr);
207 KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
208 if (ifnet.if_multiaddrs.lh_first)
209 ifmp = ifnet.if_multiaddrs.lh_first;
211 KREAD(ifmp, &ifm, struct ifmultiaddr);
212 if (ifm.ifma_addr == NULL)
214 KREAD(ifm.ifma_addr, &sa, struct sockaddr);
215 if (sa.sa_family != AF_INET6)
217 (void)in6_multientry((struct in6_multi *)
219 if (ifm.ifma_lladdr == 0)
221 KREAD(ifm.ifma_lladdr, &sdl, struct sockaddr_dl);
222 printf("\t\t\tmcast-macaddr %s multicnt %d\n",
223 ether_ntoa((struct ether_addr *)LLADDR(&sdl)),
226 ifmp = ifm.ifma_link.le_next;
230 if (nl[N_IN6_MK].n_value != 0) {
231 LIST_HEAD(in6_mktype, multi6_kludge) in6_mk;
232 struct multi6_kludge *mkp, mk;
235 KREAD(nl[N_IN6_MK].n_value, &in6_mk, struct in6_mktype);
236 KREAD(ifap0, &ifa, struct ifaddr);
238 nam = strdup(ifname(ifa.ifa_ifp));
240 fprintf(stderr, "ifmcstat: not enough core\n");
244 for (mkp = in6_mk.lh_first; mkp; mkp = mk.mk_entry.le_next) {
245 KREAD(mkp, &mk, struct multi6_kludge);
246 if (strcmp(nam, ifname(mk.mk_ifp)) == 0 &&
247 mk.mk_head.lh_first) {
248 printf("\t(on kludge entry for %s)\n", nam);
249 in6_multilist(mk.mk_head.lh_first);
260 struct in6_multi *mc;
262 struct in6_multi multi;
264 KREAD(mc, &multi, struct in6_multi);
265 printf("\t\tgroup %s", inet6_n2a(&multi.in6m_addr));
266 printf(" refcnt %u\n", multi.in6m_refcount);
267 return(multi.in6m_entry.le_next);
272 struct in6_multi *mc;
275 mc = in6_multientry(mc);