+bool ubus_has_prefix(const char *name, const char *ifname)
+{
+ struct blob_attr *c, *cur;
+ unsigned rem;
+
+ if (!dump)
+ return NULL;
+
+ blobmsg_for_each_attr(c, dump, rem) {
+ struct blob_attr *tb[IFACE_ATTR_MAX];
+ blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blobmsg_data(c), blobmsg_data_len(c));
+
+ if (!tb[IFACE_ATTR_INTERFACE] || !tb[IFACE_ATTR_IFNAME])
+ continue;
+
+ if (strcmp(name, blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])) ||
+ strcmp(ifname, blobmsg_get_string(tb[IFACE_ATTR_IFNAME])))
+ continue;
+
+ if ((cur = tb[IFACE_ATTR_PREFIX])) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY || !blobmsg_check_attr(cur, NULL))
+ continue;
+
+ struct blob_attr *d;
+ unsigned drem;
+ blobmsg_for_each_attr(d, cur, drem) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
+
+enum {
+ ADDR_ATTR_ADDR,
+ ADDR_ATTR_CLASS,
+ ADDR_ATTR_MAX
+};
+
+static const struct blobmsg_policy addr_attrs[ADDR_ATTR_MAX] = {
+ [ADDR_ATTR_ADDR] = { .name = "address", .type = BLOBMSG_TYPE_STRING },
+ [ADDR_ATTR_CLASS] = { .name = "class", .type = BLOBMSG_TYPE_STRING },
+};
+
+bool ubus_get_class(const char *ifname, const struct in6_addr *addr, uint16_t *pclass)
+{
+ struct blob_attr *c, *cur;
+ unsigned rem;
+
+ if (!dump)
+ return false;
+
+ blobmsg_for_each_attr(c, dump, rem) {
+ struct blob_attr *tb[IFACE_ATTR_MAX];
+ blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blobmsg_data(c), blobmsg_data_len(c));
+
+ if (!tb[IFACE_ATTR_IFNAME])
+ continue;
+
+ if (strcmp(ifname, blobmsg_get_string(tb[IFACE_ATTR_IFNAME])))
+ continue;
+
+ if ((cur = tb[IFACE_ATTR_ADDRESS])) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY || !blobmsg_check_attr(cur, NULL))
+ continue;
+
+ struct blob_attr *d;
+ unsigned drem;
+ blobmsg_for_each_attr(d, cur, drem) {
+ struct blob_attr *t[ADDR_ATTR_MAX];
+ blobmsg_parse(addr_attrs, ADDR_ATTR_MAX, t, blobmsg_data(d), blobmsg_data_len(d));
+
+ if (!t[ADDR_ATTR_ADDR] || !t[ADDR_ATTR_CLASS])
+ continue;
+
+ const char *addrs = blobmsg_get_string(t[ADDR_ATTR_ADDR]);
+ const char *class = blobmsg_get_string(t[ADDR_ATTR_CLASS]);
+
+ struct in6_addr ip6addr;
+ inet_pton(AF_INET6, addrs, &ip6addr);
+
+ if (IN6_ARE_ADDR_EQUAL(&ip6addr, addr)) {
+ *pclass = atoi(class);
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ return false;
+}
+
+