[patch iproute2 net-next v8 3/3] tc: implement ingress/egress block index attributes for qdiscs

@@ -31,6 +31,7 @@ static int usage(void)
 	fprintf(stderr, "       [ handle QHANDLE ] [ root | ingress | clsact | parent CLASSID ]\n");
 	fprintf(stderr, "       [ estimator INTERVAL TIME_CONSTANT ]\n");
 	fprintf(stderr, "       [ stab [ help | STAB_OPTIONS] ]\n");
+	fprintf(stderr, "       [ ingress_block BLOCK_INDEX ] [ egress_block BLOCK_INDEX ]\n");
 	fprintf(stderr, "       [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n");
 	fprintf(stderr, "\n");
 	fprintf(stderr, "       tc qdisc show [ dev STRING ] [ ingress | clsact ] [ invisible ]\n");

@@ -61,6 +62,8 @@ static int tc_qdisc_modify(int cmd, unsigned int flags, int argc, char **argv)
 		.n.nlmsg_type = cmd,
 		.t.tcm_family = AF_UNSPEC,
 	};
+	__u32 ingress_block = 0;
+	__u32 egress_block = 0;
 
 	while (argc > 0) {
 		if (strcmp(*argv, "dev") == 0) {

@@ -121,6 +124,14 @@ static int tc_qdisc_modify(int cmd, unsigned int flags, int argc, char **argv)
 			if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
 				return -1;
 			continue;
+		} else if (matches(*argv, "ingress_block") == 0) {
+			NEXT_ARG();
+			if (get_u32(&ingress_block, *argv, 0) || !ingress_block)
+				invarg("invalid ingress block index value", *argv);
+		} else if (matches(*argv, "egress_block") == 0) {
+			NEXT_ARG();
+			if (get_u32(&egress_block, *argv, 0) || !egress_block)
+				invarg("invalid egress block index value", *argv);
 		} else if (matches(*argv, "help") == 0) {
 			usage();
 		} else {

@@ -138,6 +149,13 @@ static int tc_qdisc_modify(int cmd, unsigned int flags, int argc, char **argv)
 	if (est.ewma_log)
 		addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
 
+	if (ingress_block)
+		addattr32(&req.n, sizeof(req),
+			  TCA_INGRESS_BLOCK, ingress_block);
+	if (egress_block)
+		addattr32(&req.n, sizeof(req),
+			  TCA_EGRESS_BLOCK, egress_block);
+
 	if (q) {
 		if (q->parse_qopt) {
 			if (q->parse_qopt(q, argc, argv, &req.n, d))

@@ -270,6 +288,24 @@ int print_qdisc(const struct sockaddr_nl *who,
 	    (rta_getattr_u8(tb[TCA_HW_OFFLOAD])))
 		print_bool(PRINT_ANY, "offloaded", "offloaded ", true);
 
+	if (tb[TCA_INGRESS_BLOCK] &&
+	    RTA_PAYLOAD(tb[TCA_INGRESS_BLOCK]) >= sizeof(__u32)) {
+		__u32 block = rta_getattr_u32(tb[TCA_INGRESS_BLOCK]);
+
+		if (block)
+			print_uint(PRINT_ANY, "ingress_block",
+				   "ingress_block %u ", block);
+	}
+
+	if (tb[TCA_EGRESS_BLOCK] &&
+	    RTA_PAYLOAD(tb[TCA_EGRESS_BLOCK]) >= sizeof(__u32)) {
+		__u32 block = rta_getattr_u32(tb[TCA_EGRESS_BLOCK]);
+
+		if (block)
+			print_uint(PRINT_ANY, "egress_block",
+				   "egress_block %u ", block);
+	}
+
 	/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
 	if (strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])) == 0)
 		q = get_qdisc_kind("prio");