+uword unformat_tcp_mask (unformat_input_t * input, va_list * args)
+{
+ u8 ** maskp = va_arg (*args, u8 **);
+ u8 * mask = 0;
+ u8 found_something = 0;
+ tcp_header_t * tcp;
+
+#define _(a) u8 a=0;
+ foreach_tcp_proto_field;
+#undef _
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (0) ;
+#define _(a) else if (unformat (input, #a)) a=1;
+ foreach_tcp_proto_field
+#undef _
+ else
+ break;
+ }
+
+#define _(a) found_something += a;
+ foreach_tcp_proto_field;
+#undef _
+
+ if (found_something == 0)
+ return 0;
+
+ vec_validate (mask, sizeof (*tcp) - 1);
+
+ tcp = (tcp_header_t *) mask;
+
+#define _(a) if (a) memset (&tcp->a, 0xff, sizeof (tcp->a));
+ foreach_tcp_proto_field;
+#undef _
+
+ *maskp = mask;
+ return 1;
+}
+
+uword unformat_udp_mask (unformat_input_t * input, va_list * args)
+{
+ u8 ** maskp = va_arg (*args, u8 **);
+ u8 * mask = 0;
+ u8 found_something = 0;
+ udp_header_t * udp;
+
+#define _(a) u8 a=0;
+ foreach_udp_proto_field;
+#undef _
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (0) ;
+#define _(a) else if (unformat (input, #a)) a=1;
+ foreach_udp_proto_field
+#undef _
+ else
+ break;
+ }
+
+#define _(a) found_something += a;
+ foreach_udp_proto_field;
+#undef _
+
+ if (found_something == 0)
+ return 0;
+
+ vec_validate (mask, sizeof (*udp) - 1);
+
+ udp = (udp_header_t *) mask;
+
+#define _(a) if (a) memset (&udp->a, 0xff, sizeof (udp->a));
+ foreach_udp_proto_field;
+#undef _
+
+ *maskp = mask;
+ return 1;
+}
+
+typedef struct {
+ u16 src_port, dst_port;
+} tcpudp_header_t;
+
+uword unformat_l4_mask (unformat_input_t * input, va_list * args)
+{
+ u8 ** maskp = va_arg (*args, u8 **);
+ u16 src_port = 0, dst_port = 0;
+ tcpudp_header_t * tcpudp;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "tcp %U", unformat_tcp_mask, maskp))
+ return 1;
+ else if (unformat (input, "udp %U", unformat_udp_mask, maskp))
+ return 1;
+ else if (unformat (input, "src_port"))
+ src_port = 0xFFFF;
+ else if (unformat (input, "dst_port"))
+ dst_port = 0xFFFF;
+ else
+ return 0;
+ }
+
+ if (!src_port && !dst_port)
+ return 0;
+
+ u8 * mask = 0;
+ vec_validate (mask, sizeof (tcpudp_header_t) - 1);
+
+ tcpudp = (tcpudp_header_t *) mask;
+ tcpudp->src_port = src_port;
+ tcpudp->dst_port = dst_port;
+
+ *maskp = mask;
+
+ return 1;
+}
+