Make filtering customizable

[project/odhcpd.git] / src / dhcpv6.c

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index 37dc3f5..aaefa5e 100644 (file)
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -22,8 +22,6 @@
 #include "odhcpd.h"
 #include "dhcpv6.h"
 
-static const char *excluded_class = "HOMENET";
-
 
 static void relay_client_request(struct sockaddr_in6 *source,
                const void *data, size_t len, struct interface *iface);
@@ -293,11 +291,11 @@ static void handle_client_request(void *addr, void *data, size_t len,
                        if (olen != ntohs(dest.serverid_length) ||
                                        memcmp(odata, &dest.duid_type, olen))
                                return; // Not for us
-               } else if (otype == DHCPV6_OPT_USER_CLASS) {
+               } else if (iface->filter_class && otype == DHCPV6_OPT_USER_CLASS) {
                        uint8_t *c = odata, *cend = &odata[olen];
                        for (; &c[2] <= cend && &c[2 + (c[0] << 8) + c[1]] <= cend; c = &c[2 + (c[0] << 8) + c[1]]) {
-                               size_t elen = strlen(excluded_class);
-                               if (((((size_t)c[0]) << 8) | c[1]) == elen && !memcmp(&c[2], excluded_class, elen))
+                               size_t elen = strlen(iface->filter_class);
+                               if (((((size_t)c[0]) << 8) | c[1]) == elen && !memcmp(&c[2], iface->filter_class, elen))
                                        return; // Ignore from homenet
                        }
                } else if (otype == DHCPV6_OPT_IA_PD) {