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Diffstat (limited to 'freebsd-userspace/commands/sbin/ifconfig/af_inet6.c')
-rw-r--r--freebsd-userspace/commands/sbin/ifconfig/af_inet6.c556
1 files changed, 556 insertions, 0 deletions
diff --git a/freebsd-userspace/commands/sbin/ifconfig/af_inet6.c b/freebsd-userspace/commands/sbin/ifconfig/af_inet6.c
new file mode 100644
index 00000000..c09c778c
--- /dev/null
+++ b/freebsd-userspace/commands/sbin/ifconfig/af_inet6.c
@@ -0,0 +1,556 @@
+/*
+ * Copyright (c) 1983, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ifaddrs.h>
+
+#include <arpa/inet.h>
+
+#include <netinet/in.h>
+#ifdef __rtems__
+#include <freebsd/net/if_var.h> /* for struct ifaddr */
+#include <freebsd/netinet/in_var.h>
+#else
+#include <net/if_var.h> /* for struct ifaddr */
+#include <netinet/in_var.h>
+#endif
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#ifdef __rtems__
+#include <freebsd/netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */
+#else
+#include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */
+#endif
+
+#include "ifconfig.h"
+
+static struct in6_ifreq in6_ridreq;
+static struct in6_aliasreq in6_addreq =
+ { .ifra_flags = 0,
+ .ifra_lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } };
+static int ip6lifetime;
+
+static void in6_fillscopeid(struct sockaddr_in6 *sin6);
+static int prefix(void *, int);
+static char *sec2str(time_t);
+static int explicit_prefix = 0;
+
+extern void setnd6flags(const char *, int, int, const struct afswtch *);
+extern void setnd6defif(const char *, int, int, const struct afswtch *);
+
+static char addr_buf[MAXHOSTNAMELEN *2 + 1]; /*for getnameinfo()*/
+
+static void
+setifprefixlen(const char *addr, int dummy __unused, int s,
+ const struct afswtch *afp)
+{
+ if (afp->af_getprefix != NULL)
+ afp->af_getprefix(addr, MASK);
+ explicit_prefix = 1;
+}
+
+static void
+setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused,
+ const struct afswtch *afp)
+{
+ if (afp->af_af != AF_INET6)
+ err(1, "address flags can be set only for inet6 addresses");
+
+ if (flag < 0)
+ in6_addreq.ifra_flags &= ~(-flag);
+ else
+ in6_addreq.ifra_flags |= flag;
+}
+
+static void
+setip6lifetime(const char *cmd, const char *val, int s,
+ const struct afswtch *afp)
+{
+ time_t newval, t;
+ char *ep;
+
+ t = time(NULL);
+ newval = (time_t)strtoul(val, &ep, 0);
+ if (val == ep)
+ errx(1, "invalid %s", cmd);
+ if (afp->af_af != AF_INET6)
+ errx(1, "%s not allowed for the AF", cmd);
+ if (strcmp(cmd, "vltime") == 0) {
+ in6_addreq.ifra_lifetime.ia6t_expire = t + newval;
+ in6_addreq.ifra_lifetime.ia6t_vltime = newval;
+ } else if (strcmp(cmd, "pltime") == 0) {
+ in6_addreq.ifra_lifetime.ia6t_preferred = t + newval;
+ in6_addreq.ifra_lifetime.ia6t_pltime = newval;
+ }
+}
+
+static void
+setip6pltime(const char *seconds, int dummy __unused, int s,
+ const struct afswtch *afp)
+{
+ setip6lifetime("pltime", seconds, s, afp);
+}
+
+static void
+setip6vltime(const char *seconds, int dummy __unused, int s,
+ const struct afswtch *afp)
+{
+ setip6lifetime("vltime", seconds, s, afp);
+}
+
+static void
+setip6eui64(const char *cmd, int dummy __unused, int s,
+ const struct afswtch *afp)
+{
+ struct ifaddrs *ifap, *ifa;
+ const struct sockaddr_in6 *sin6 = NULL;
+ const struct in6_addr *lladdr = NULL;
+ struct in6_addr *in6;
+
+ if (afp->af_af != AF_INET6)
+ errx(EXIT_FAILURE, "%s not allowed for the AF", cmd);
+ in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr;
+ if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0)
+ errx(EXIT_FAILURE, "interface index is already filled");
+ if (getifaddrs(&ifap) != 0)
+ err(EXIT_FAILURE, "getifaddrs");
+ for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr->sa_family == AF_INET6 &&
+ strcmp(ifa->ifa_name, name) == 0) {
+ sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr;
+ if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
+ lladdr = &sin6->sin6_addr;
+ break;
+ }
+ }
+ }
+ if (!lladdr)
+ errx(EXIT_FAILURE, "could not determine link local address");
+
+ memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8);
+
+ freeifaddrs(ifap);
+}
+
+static void
+in6_fillscopeid(struct sockaddr_in6 *sin6)
+{
+#if defined(__KAME__) && defined(KAME_SCOPEID)
+ if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
+ sin6->sin6_scope_id =
+ ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]);
+ sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
+ }
+#endif
+}
+
+static void
+in6_status(int s __unused, const struct ifaddrs *ifa)
+{
+ struct sockaddr_in6 *sin, null_sin;
+ struct in6_ifreq ifr6;
+ int s6;
+ u_int32_t flags6;
+ struct in6_addrlifetime lifetime;
+ time_t t = time(NULL);
+ int error;
+ u_int32_t scopeid;
+
+ memset(&null_sin, 0, sizeof(null_sin));
+
+ sin = (struct sockaddr_in6 *)ifa->ifa_addr;
+ if (sin == NULL)
+ return;
+
+ strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name));
+ if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ warn("socket(AF_INET6,SOCK_DGRAM)");
+ return;
+ }
+ ifr6.ifr_addr = *sin;
+ if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
+ warn("ioctl(SIOCGIFAFLAG_IN6)");
+ close(s6);
+ return;
+ }
+ flags6 = ifr6.ifr_ifru.ifru_flags6;
+ memset(&lifetime, 0, sizeof(lifetime));
+ ifr6.ifr_addr = *sin;
+ if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
+ warn("ioctl(SIOCGIFALIFETIME_IN6)");
+ close(s6);
+ return;
+ }
+ lifetime = ifr6.ifr_ifru.ifru_lifetime;
+ close(s6);
+
+ /* XXX: embedded link local addr check */
+ if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
+ *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
+ u_short index;
+
+ index = *(u_short *)&sin->sin6_addr.s6_addr[2];
+ *(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
+ if (sin->sin6_scope_id == 0)
+ sin->sin6_scope_id = ntohs(index);
+ }
+ scopeid = sin->sin6_scope_id;
+
+ error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf,
+ sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
+ if (error != 0)
+ inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
+ sizeof(addr_buf));
+ printf("\tinet6 %s ", addr_buf);
+
+ if (ifa->ifa_flags & IFF_POINTOPOINT) {
+ sin = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
+ /*
+ * some of the interfaces do not have valid destination
+ * address.
+ */
+ if (sin != NULL && sin->sin6_family == AF_INET6) {
+ int error;
+
+ /* XXX: embedded link local addr check */
+ if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
+ *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
+ u_short index;
+
+ index = *(u_short *)&sin->sin6_addr.s6_addr[2];
+ *(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
+ if (sin->sin6_scope_id == 0)
+ sin->sin6_scope_id = ntohs(index);
+ }
+
+ error = getnameinfo((struct sockaddr *)sin,
+ sin->sin6_len, addr_buf,
+ sizeof(addr_buf), NULL, 0,
+ NI_NUMERICHOST);
+ if (error != 0)
+ inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
+ sizeof(addr_buf));
+ printf("--> %s ", addr_buf);
+ }
+ }
+
+ sin = (struct sockaddr_in6 *)ifa->ifa_netmask;
+ if (sin == NULL)
+ sin = &null_sin;
+ printf("prefixlen %d ", prefix(&sin->sin6_addr,
+ sizeof(struct in6_addr)));
+
+ if ((flags6 & IN6_IFF_ANYCAST) != 0)
+ printf("anycast ");
+ if ((flags6 & IN6_IFF_TENTATIVE) != 0)
+ printf("tentative ");
+ if ((flags6 & IN6_IFF_DUPLICATED) != 0)
+ printf("duplicated ");
+ if ((flags6 & IN6_IFF_DETACHED) != 0)
+ printf("detached ");
+ if ((flags6 & IN6_IFF_DEPRECATED) != 0)
+ printf("deprecated ");
+ if ((flags6 & IN6_IFF_AUTOCONF) != 0)
+ printf("autoconf ");
+ if ((flags6 & IN6_IFF_TEMPORARY) != 0)
+ printf("temporary ");
+
+ if (scopeid)
+ printf("scopeid 0x%x ", scopeid);
+
+ if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) {
+ printf("pltime ");
+ if (lifetime.ia6t_preferred) {
+ printf("%s ", lifetime.ia6t_preferred < t
+ ? "0" : sec2str(lifetime.ia6t_preferred - t));
+ } else
+ printf("infty ");
+
+ printf("vltime ");
+ if (lifetime.ia6t_expire) {
+ printf("%s ", lifetime.ia6t_expire < t
+ ? "0" : sec2str(lifetime.ia6t_expire - t));
+ } else
+ printf("infty ");
+ }
+
+ putchar('\n');
+}
+
+#define SIN6(x) ((struct sockaddr_in6 *) &(x))
+static struct sockaddr_in6 *sin6tab[] = {
+ SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr),
+ SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)
+};
+
+static void
+in6_getprefix(const char *plen, int which)
+{
+ struct sockaddr_in6 *sin = sin6tab[which];
+ u_char *cp;
+ int len = atoi(plen);
+
+ if ((len < 0) || (len > 128))
+ errx(1, "%s: bad value", plen);
+ sin->sin6_len = sizeof(*sin);
+ if (which != MASK)
+ sin->sin6_family = AF_INET6;
+ if ((len == 0) || (len == 128)) {
+ memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr));
+ return;
+ }
+ memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr));
+ for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
+ *cp++ = 0xff;
+ *cp = 0xff << (8 - len);
+}
+
+static void
+in6_getaddr(const char *s, int which)
+{
+ struct sockaddr_in6 *sin = sin6tab[which];
+ struct addrinfo hints, *res;
+ int error = -1;
+
+ newaddr &= 1;
+
+ sin->sin6_len = sizeof(*sin);
+ if (which != MASK)
+ sin->sin6_family = AF_INET6;
+
+ if (which == ADDR) {
+ char *p = NULL;
+ if((p = strrchr(s, '/')) != NULL) {
+ *p = '\0';
+ in6_getprefix(p + 1, MASK);
+ explicit_prefix = 1;
+ }
+ }
+
+ if (sin->sin6_family == AF_INET6) {
+ bzero(&hints, sizeof(struct addrinfo));
+ hints.ai_family = AF_INET6;
+ error = getaddrinfo(s, NULL, &hints, &res);
+ }
+ if (error != 0) {
+ if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
+ errx(1, "%s: bad value", s);
+ } else
+ bcopy(res->ai_addr, sin, res->ai_addrlen);
+}
+
+static int
+prefix(void *val, int size)
+{
+ u_char *name = (u_char *)val;
+ int byte, bit, plen = 0;
+
+ for (byte = 0; byte < size; byte++, plen += 8)
+ if (name[byte] != 0xff)
+ break;
+ if (byte == size)
+ return (plen);
+ for (bit = 7; bit != 0; bit--, plen++)
+ if (!(name[byte] & (1 << bit)))
+ break;
+ for (; bit != 0; bit--)
+ if (name[byte] & (1 << bit))
+ return(0);
+ byte++;
+ for (; byte < size; byte++)
+ if (name[byte])
+ return(0);
+ return (plen);
+}
+
+static char *
+sec2str(time_t total)
+{
+ static char result[256];
+ int days, hours, mins, secs;
+ int first = 1;
+ char *p = result;
+
+ if (0) {
+ days = total / 3600 / 24;
+ hours = (total / 3600) % 24;
+ mins = (total / 60) % 60;
+ secs = total % 60;
+
+ if (days) {
+ first = 0;
+ p += sprintf(p, "%dd", days);
+ }
+ if (!first || hours) {
+ first = 0;
+ p += sprintf(p, "%dh", hours);
+ }
+ if (!first || mins) {
+ first = 0;
+ p += sprintf(p, "%dm", mins);
+ }
+ sprintf(p, "%ds", secs);
+ } else
+ sprintf(result, "%lu", (unsigned long)total);
+
+ return(result);
+}
+
+static void
+in6_postproc(int s, const struct afswtch *afp)
+{
+ if (explicit_prefix == 0) {
+ /* Aggregatable address architecture defines all prefixes
+ are 64. So, it is convenient to set prefixlen to 64 if
+ it is not specified. */
+ setifprefixlen("64", 0, s, afp);
+ /* in6_getprefix("64", MASK) if MASK is available here... */
+ }
+}
+
+static void
+in6_status_tunnel(int s)
+{
+ char src[NI_MAXHOST];
+ char dst[NI_MAXHOST];
+ struct in6_ifreq in6_ifr;
+ const struct sockaddr *sa = (const struct sockaddr *) &in6_ifr.ifr_addr;
+
+ memset(&in6_ifr, 0, sizeof(in6_ifr));
+ strncpy(in6_ifr.ifr_name, name, IFNAMSIZ);
+
+ if (ioctl(s, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0)
+ return;
+ if (sa->sa_family != AF_INET6)
+ return;
+ in6_fillscopeid(&in6_ifr.ifr_addr);
+ if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0,
+ NI_NUMERICHOST) != 0)
+ src[0] = '\0';
+
+ if (ioctl(s, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0)
+ return;
+ if (sa->sa_family != AF_INET6)
+ return;
+ in6_fillscopeid(&in6_ifr.ifr_addr);
+ if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0,
+ NI_NUMERICHOST) != 0)
+ dst[0] = '\0';
+
+ printf("\ttunnel inet6 %s --> %s\n", src, dst);
+}
+
+static void
+in6_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres)
+{
+ struct in6_aliasreq in6_addreq;
+
+ memset(&in6_addreq, 0, sizeof(in6_addreq));
+ strncpy(in6_addreq.ifra_name, name, IFNAMSIZ);
+ memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len);
+ memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr,
+ dstres->ai_addr->sa_len);
+
+ if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0)
+ warn("SIOCSIFPHYADDR_IN6");
+}
+
+static struct cmd inet6_cmds[] = {
+ DEF_CMD_ARG("prefixlen", setifprefixlen),
+ DEF_CMD("anycast", IN6_IFF_ANYCAST, setip6flags),
+ DEF_CMD("tentative", IN6_IFF_TENTATIVE, setip6flags),
+ DEF_CMD("-tentative", -IN6_IFF_TENTATIVE, setip6flags),
+ DEF_CMD("deprecated", IN6_IFF_DEPRECATED, setip6flags),
+ DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED, setip6flags),
+ DEF_CMD("autoconf", IN6_IFF_AUTOCONF, setip6flags),
+ DEF_CMD("-autoconf", -IN6_IFF_AUTOCONF, setip6flags),
+ DEF_CMD("accept_rtadv", ND6_IFF_ACCEPT_RTADV, setnd6flags),
+ DEF_CMD("-accept_rtadv",-ND6_IFF_ACCEPT_RTADV, setnd6flags),
+ DEF_CMD("defaultif", 1, setnd6defif),
+ DEF_CMD("-defaultif", -1, setnd6defif),
+ DEF_CMD("ifdisabled", ND6_IFF_IFDISABLED, setnd6flags),
+ DEF_CMD("-ifdisabled", -ND6_IFF_IFDISABLED, setnd6flags),
+ DEF_CMD("nud", ND6_IFF_PERFORMNUD, setnd6flags),
+ DEF_CMD("-nud", -ND6_IFF_PERFORMNUD, setnd6flags),
+ DEF_CMD("prefer_source",ND6_IFF_PREFER_SOURCE, setnd6flags),
+ DEF_CMD("-prefer_source",-ND6_IFF_PREFER_SOURCE,setnd6flags),
+ DEF_CMD_ARG("pltime", setip6pltime),
+ DEF_CMD_ARG("vltime", setip6vltime),
+ DEF_CMD("eui64", 0, setip6eui64),
+};
+
+static struct afswtch af_inet6 = {
+ .af_name = "inet6",
+ .af_af = AF_INET6,
+ .af_status = in6_status,
+ .af_getaddr = in6_getaddr,
+ .af_getprefix = in6_getprefix,
+ .af_postproc = in6_postproc,
+ .af_status_tunnel = in6_status_tunnel,
+ .af_settunnel = in6_set_tunnel,
+ .af_difaddr = SIOCDIFADDR_IN6,
+ .af_aifaddr = SIOCAIFADDR_IN6,
+ .af_ridreq = &in6_addreq,
+ .af_addreq = &in6_addreq,
+};
+
+static void
+in6_Lopt_cb(const char *optarg __unused)
+{
+ ip6lifetime++; /* print IPv6 address lifetime */
+}
+static struct option in6_Lopt = { .opt = "L", .opt_usage = "[-L]", .cb = in6_Lopt_cb };
+
+static __constructor void
+inet6_ctor(void)
+{
+#define N(a) (sizeof(a) / sizeof(a[0]))
+ size_t i;
+
+ for (i = 0; i < N(inet6_cmds); i++)
+ cmd_register(&inet6_cmds[i]);
+ af_register(&af_inet6);
+ opt_register(&in6_Lopt);
+#undef N
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 08:50:23 +0000