static int INET6_input(int type, char *bufp, struct sockaddr *sap)
{
switch (type) {
case 1:
return (INET6_getsock(bufp, sap));
default:
return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
}
}
static void INET6_setroute(int action, char **args)
{
struct sockaddr_in6 sa6;
struct in6_rtmsg rt;
int prefix_len, skfd;
const char *devname;
assert((action == RTACTION_ADD) || (action == RTACTION_DEL));
{
/* We know args isn't NULL from the check in route_main. */
const char *target = *args++;
if (strcmp(target, "default") == 0) {
prefix_len = 0;
memset(&sa6, 0, sizeof(sa6));
} else {
char *cp;
if ((cp = strchr(target, '/'))) { /* Yes... const to non is ok. */
*cp = 0;
prefix_len = bb_xgetularg10_bnd(cp+1, 0, 128);
} else {
prefix_len = 128;
}
if (INET6_resolve(target, (struct sockaddr_in6 *) &sa6) < 0) {
bb_error_msg_and_die("resolving %s", target);
}
}
}
/* Clean out the RTREQ structure. */
memset((char *) &rt, 0, sizeof(struct in6_rtmsg));
memcpy(&rt.rtmsg_dst, sa6.sin6_addr.s6_addr, sizeof(struct in6_addr));
/* Fill in the other fields. */
rt.rtmsg_dst_len = prefix_len;
rt.rtmsg_flags = ((prefix_len == 128) ? (RTF_UP|RTF_HOST) : RTF_UP);
rt.rtmsg_metric = 1;
devname = NULL;
while (*args) {
int k = kw_lookup(tbl_ipvx, &args);
const char *args_m1 = args[-1];
if ((k == KW_IPVx_MOD) || (k == KW_IPVx_DYN)) {
rt.rtmsg_flags |= flags_ipvx[k & 3];
continue;
}
if (k == KW_IPVx_METRIC) {
rt.rtmsg_metric = bb_xgetularg10(args_m1);
continue;
}
if (k == KW_IPVx_GATEWAY) {
if (rt.rtmsg_flags & RTF_GATEWAY) {
bb_show_usage();
}
if (INET6_resolve(args_m1, (struct sockaddr_in6 *) &sa6) < 0) {
bb_error_msg_and_die("resolving %s", args_m1);
}
memcpy(&rt.rtmsg_gateway, sa6.sin6_addr.s6_addr,
sizeof(struct in6_addr));
rt.rtmsg_flags |= RTF_GATEWAY;
continue;
}
/* Device is special in that it can be the last arg specified
* and doesn't requre the dev/device keyword in that case. */
if (!devname && ((k == KW_IPVx_DEVICE) || (!k && !*++args))) {
/* Don't use args_m1 here since args may have changed! */
devname = args[-1];
continue;
}
/* Nothing matched. */
bb_show_usage();
}
/* Create a socket to the INET6 kernel. */
if ((skfd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
bb_perror_msg_and_die("socket");
}
rt.rtmsg_ifindex = 0;
if (devname) {
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, devname);
if (ioctl(skfd, SIOGIFINDEX, &ifr) < 0) {
bb_perror_msg_and_die("SIOGIFINDEX");
}
rt.rtmsg_ifindex = ifr.ifr_ifindex;
}
/* Tell the kernel to accept this route. */
if (ioctl(skfd, ((action==RTACTION_ADD) ? SIOCADDRT : SIOCDELRT), &rt)<0) {
bb_perror_msg_and_die("SIOC[ADD|DEL]RT");
}
/* Don't bother closing, as we're exiting after we return anyway. */
/* close(skfd); */
}
static int INET6_setroute(int action, int options, char **args)
{
struct in6_rtmsg rt;
struct ifreq ifr;
struct sockaddr_in6 sa6;
char target[128], gateway[128] = "NONE";
int metric, prefix_len;
char *devname = NULL;
char *cp;
int skfd;
if (*args == NULL)
bb_show_usage();
strcpy(target, *args++);
if (!strcmp(target, "default")) {
prefix_len = 0;
memset(&sa6, 0, sizeof(sa6));
} else {
if ((cp = strchr(target, '/'))) {
prefix_len = atol(cp + 1);
if ((prefix_len < 0) || (prefix_len > 128))
bb_show_usage();
*cp = 0;
} else {
prefix_len = 128;
}
if (INET6_resolve(target, (struct sockaddr_in6 *) &sa6) < 0) {
bb_error_msg(_("can't resolve %s"), target);
return EXIT_FAILURE; /* XXX change to E_something */
}
}
/* Clean out the RTREQ structure. */
memset((char *) &rt, 0, sizeof(struct in6_rtmsg));
memcpy(&rt.rtmsg_dst, sa6.sin6_addr.s6_addr, sizeof(struct in6_addr));
/* Fill in the other fields. */
rt.rtmsg_flags = RTF_UP;
if (prefix_len == 128)
rt.rtmsg_flags |= RTF_HOST;
rt.rtmsg_metric = 1;
rt.rtmsg_dst_len = prefix_len;
while (*args) {
if (!strcmp(*args, "metric")) {
args++;
if (!*args || !isdigit(**args))
bb_show_usage();
metric = atoi(*args);
rt.rtmsg_metric = metric;
args++;
continue;
}
if (!strcmp(*args, "gw") || !strcmp(*args, "gateway")) {
args++;
if (!*args)
bb_show_usage();
if (rt.rtmsg_flags & RTF_GATEWAY)
bb_show_usage();
strcpy(gateway, *args);
if (INET6_resolve(gateway, (struct sockaddr_in6 *) &sa6) < 0) {
bb_error_msg(_("can't resolve gw %s"), gateway);
return (E_LOOKUP);
}
memcpy(&rt.rtmsg_gateway, sa6.sin6_addr.s6_addr,
sizeof(struct in6_addr));
rt.rtmsg_flags |= RTF_GATEWAY;
args++;
continue;
}
if (!strcmp(*args, "mod")) {
args++;
rt.rtmsg_flags |= RTF_MODIFIED;
continue;
}
if (!strcmp(*args, "dyn")) {
args++;
rt.rtmsg_flags |= RTF_DYNAMIC;
continue;
}
if (!strcmp(*args, "device") || !strcmp(*args, "dev")) {
args++;
if (!*args)
bb_show_usage();
} else if (args[1])
bb_show_usage();
devname = *args;
args++;
}
/* Create a socket to the INET6 kernel. */
if ((skfd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
perror("socket");
return (E_SOCK);
}
if (devname) {
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, devname);
if (ioctl(skfd, SIOGIFINDEX, &ifr) < 0) {
perror("SIOGIFINDEX");
return (E_SOCK);
}
rt.rtmsg_ifindex = ifr.ifr_ifindex;
} else
rt.rtmsg_ifindex = 0;
/* Tell the kernel to accept this route. */
if (action == RTACTION_DEL) {
if (ioctl(skfd, SIOCDELRT, &rt) < 0) {
perror("SIOCDELRT");
close(skfd);
return (E_SOCK);
}
} else {
if (ioctl(skfd, SIOCADDRT, &rt) < 0) {
perror("SIOCADDRT");
close(skfd);
return (E_SOCK);
}
}
/* Close the socket. */
(void) close(skfd);
return (0);
}
