Adding upstream version 6.1.0.upstream/6.1.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 210 insertions, 0 deletions

diff --git a/tc/q_hhf.c b/tc/q_hhf.c
new file mode 100644
index 0000000..95e49f3
--- /dev/null
+++ b/tc/q_hhf.c
@@ -0,0 +1,210 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* q_hhf.c		Heavy-Hitter Filter (HHF)
+ *
+ * Copyright (C) 2013 Terry Lam <vtlam@google.com>
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "utils.h"
+#include "tc_util.h"
+
+static void explain(void)
+{
+	fprintf(stderr,
+		"Usage: ... hhf	[ limit PACKETS ] [ quantum BYTES]\n"
+		"		[ hh_limit NUMBER ]\n"
+		"		[ reset_timeout TIME ]\n"
+		"		[ admit_bytes BYTES ]\n"
+		"		[ evict_timeout TIME ]\n"
+		"		[ non_hh_weight NUMBER ]\n");
+}
+
+static int hhf_parse_opt(struct qdisc_util *qu, int argc, char **argv,
+			 struct nlmsghdr *n, const char *dev)
+{
+	unsigned int limit = 0;
+	unsigned int quantum = 0;
+	unsigned int hh_limit = 0;
+	unsigned int reset_timeout = 0;
+	unsigned int admit_bytes = 0;
+	unsigned int evict_timeout = 0;
+	unsigned int non_hh_weight = 0;
+	struct rtattr *tail;
+
+	while (argc > 0) {
+		if (strcmp(*argv, "limit") == 0) {
+			NEXT_ARG();
+			if (get_unsigned(&limit, *argv, 0)) {
+				fprintf(stderr, "Illegal \"limit\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "quantum") == 0) {
+			NEXT_ARG();
+			if (get_unsigned(&quantum, *argv, 0)) {
+				fprintf(stderr, "Illegal \"quantum\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "hh_limit") == 0) {
+			NEXT_ARG();
+			if (get_unsigned(&hh_limit, *argv, 0)) {
+				fprintf(stderr, "Illegal \"hh_limit\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "reset_timeout") == 0) {
+			NEXT_ARG();
+			if (get_time(&reset_timeout, *argv)) {
+				fprintf(stderr, "Illegal \"reset_timeout\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "admit_bytes") == 0) {
+			NEXT_ARG();
+			if (get_unsigned(&admit_bytes, *argv, 0)) {
+				fprintf(stderr, "Illegal \"admit_bytes\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "evict_timeout") == 0) {
+			NEXT_ARG();
+			if (get_time(&evict_timeout, *argv)) {
+				fprintf(stderr, "Illegal \"evict_timeout\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "non_hh_weight") == 0) {
+			NEXT_ARG();
+			if (get_unsigned(&non_hh_weight, *argv, 0)) {
+				fprintf(stderr, "Illegal \"non_hh_weight\"\n");
+				return -1;
+			}
+		} else if (strcmp(*argv, "help") == 0) {
+			explain();
+			return -1;
+		} else {
+			fprintf(stderr, "What is \"%s\"?\n", *argv);
+			explain();
+			return -1;
+		}
+		argc--; argv++;
+	}
+
+	tail = addattr_nest(n, 1024, TCA_OPTIONS);
+	if (limit)
+		addattr_l(n, 1024, TCA_HHF_BACKLOG_LIMIT, &limit,
+			  sizeof(limit));
+	if (quantum)
+		addattr_l(n, 1024, TCA_HHF_QUANTUM, &quantum, sizeof(quantum));
+	if (hh_limit)
+		addattr_l(n, 1024, TCA_HHF_HH_FLOWS_LIMIT, &hh_limit,
+			  sizeof(hh_limit));
+	if (reset_timeout)
+		addattr_l(n, 1024, TCA_HHF_RESET_TIMEOUT, &reset_timeout,
+			  sizeof(reset_timeout));
+	if (admit_bytes)
+		addattr_l(n, 1024, TCA_HHF_ADMIT_BYTES, &admit_bytes,
+			  sizeof(admit_bytes));
+	if (evict_timeout)
+		addattr_l(n, 1024, TCA_HHF_EVICT_TIMEOUT, &evict_timeout,
+			  sizeof(evict_timeout));
+	if (non_hh_weight)
+		addattr_l(n, 1024, TCA_HHF_NON_HH_WEIGHT, &non_hh_weight,
+			  sizeof(non_hh_weight));
+	addattr_nest_end(n, tail);
+	return 0;
+}
+
+static int hhf_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
+{
+	struct rtattr *tb[TCA_HHF_MAX + 1];
+	unsigned int limit;
+	unsigned int quantum;
+	unsigned int hh_limit;
+	unsigned int reset_timeout;
+	unsigned int admit_bytes;
+	unsigned int evict_timeout;
+	unsigned int non_hh_weight;
+
+	SPRINT_BUF(b1);
+
+	if (opt == NULL)
+		return 0;
+
+	parse_rtattr_nested(tb, TCA_HHF_MAX, opt);
+
+	if (tb[TCA_HHF_BACKLOG_LIMIT] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_BACKLOG_LIMIT]) >= sizeof(__u32)) {
+		limit = rta_getattr_u32(tb[TCA_HHF_BACKLOG_LIMIT]);
+		print_uint(PRINT_ANY, "limit", "limit %up ", limit);
+	}
+	if (tb[TCA_HHF_QUANTUM] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_QUANTUM]) >= sizeof(__u32)) {
+		quantum = rta_getattr_u32(tb[TCA_HHF_QUANTUM]);
+		print_size(PRINT_ANY, "quantum", "quantum %s ", quantum);
+	}
+	if (tb[TCA_HHF_HH_FLOWS_LIMIT] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_HH_FLOWS_LIMIT]) >= sizeof(__u32)) {
+		hh_limit = rta_getattr_u32(tb[TCA_HHF_HH_FLOWS_LIMIT]);
+		print_uint(PRINT_ANY, "hh_limit", "hh_limit %u ", hh_limit);
+	}
+	if (tb[TCA_HHF_RESET_TIMEOUT] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_RESET_TIMEOUT]) >= sizeof(__u32)) {
+		reset_timeout = rta_getattr_u32(tb[TCA_HHF_RESET_TIMEOUT]);
+		print_uint(PRINT_JSON, "reset_timeout", NULL, reset_timeout);
+		print_string(PRINT_FP, NULL, "reset_timeout %s ",
+			     sprint_time(reset_timeout, b1));
+	}
+	if (tb[TCA_HHF_ADMIT_BYTES] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_ADMIT_BYTES]) >= sizeof(__u32)) {
+		admit_bytes = rta_getattr_u32(tb[TCA_HHF_ADMIT_BYTES]);
+		print_size(PRINT_ANY, "admit_bytes", "admit_bytes %s ",
+			   admit_bytes);
+	}
+	if (tb[TCA_HHF_EVICT_TIMEOUT] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_EVICT_TIMEOUT]) >= sizeof(__u32)) {
+		evict_timeout = rta_getattr_u32(tb[TCA_HHF_EVICT_TIMEOUT]);
+		print_uint(PRINT_JSON, "evict_timeout", NULL, evict_timeout);
+		print_string(PRINT_FP, NULL, "evict_timeout %s ",
+			     sprint_time(evict_timeout, b1));
+	}
+	if (tb[TCA_HHF_NON_HH_WEIGHT] &&
+	    RTA_PAYLOAD(tb[TCA_HHF_NON_HH_WEIGHT]) >= sizeof(__u32)) {
+		non_hh_weight = rta_getattr_u32(tb[TCA_HHF_NON_HH_WEIGHT]);
+		print_uint(PRINT_ANY, "non_hh_weight", "non_hh_weight %u ",
+			   non_hh_weight);
+	}
+	return 0;
+}
+
+static int hhf_print_xstats(struct qdisc_util *qu, FILE *f,
+			    struct rtattr *xstats)
+{
+	struct tc_hhf_xstats *st;
+
+	if (xstats == NULL)
+		return 0;
+
+	if (RTA_PAYLOAD(xstats) < sizeof(*st))
+		return -1;
+
+	st = RTA_DATA(xstats);
+
+	print_uint(PRINT_ANY, "drop_overlimit", "  drop_overlimit %u",
+		   st->drop_overlimit);
+	print_uint(PRINT_ANY, "hh_overlimit", " hh_overlimit %u",
+		   st->hh_overlimit);
+	print_uint(PRINT_ANY, "tot_hh", " tot_hh %u", st->hh_tot_count);
+	print_uint(PRINT_ANY, "cur_hh", " cur_hh %u", st->hh_cur_count);
+
+	return 0;
+}
+
+struct qdisc_util hhf_qdisc_util = {
+	.id		= "hhf",
+	.parse_qopt	= hhf_parse_opt,
+	.print_qopt	= hhf_print_opt,
+	.print_xstats	= hhf_print_xstats,
+};