dhcpv4: add ubus_get_address4 ubus_get_mask4 function

Signed-off-by: Patrick Grimm <patrick@lunatiki.de>

diff --git a/src/ubus.c b/src/ubus.c
index 19bd3afb7aa10766cbac19e50d162595aa899a84..7e956fa9ea19f98869c504fb3facbdaf692ee41f 100644 (file)
--- a/src/ubus.c
+++ b/src/ubus.c
@@ -361,6 +361,57 @@ bool ubus_has_prefix(const char *name, const char *ifname)
        return false;
 }
 
+struct in_addr ubus_get_address4(const char *name)
+{
+       struct blob_attr *c;
+       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] || strcmp(name,
+                               blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])))
+                       continue;
+
+               if (tb[IFACE_ATTR_IFNAME]) {
+                       struct in_addr addr4;
+                       if (inet_pton(AF_INET, blobmsg_get_string(tb[IFACE_ATTR_ADDRESS4]), &addr4) == 1)
+                               return addr4;
+               }
+       }
+
+       return NULL;
+}
+
+struct in_addr ubus_get_mask4(const char *name)
+{
+       struct blob_attr *c;
+       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] || strcmp(name,
+                               blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])))
+                       continue;
+
+               if (tb[IFACE_ATTR_IFNAME]) {
+                       struct in_addr mask4;
+                       if (inet_pton(AF_INET, blobmsg_get_string(tb[IFACE_ATTR_MASK4]), &mask4) == 1)
+                               return mask4;
+               }
+       }
+
+       return NULL;
+}
 
 int init_ubus(void)
 {