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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:18:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:18:53 +0000
commita0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 (patch)
tree8feaf1a1932871b139b3b30be4c09c66489918be /tc/q_drr.c
parentInitial commit. (diff)
downloadiproute2-upstream.tar.xz
iproute2-upstream.zip
Adding upstream version 6.1.0.upstream/6.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tc/q_drr.c')
-rw-r--r--tc/q_drr.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/tc/q_drr.c b/tc/q_drr.c
new file mode 100644
index 0000000..4e829ce
--- /dev/null
+++ b/tc/q_drr.c
@@ -0,0 +1,119 @@
+/*
+ * q_drr.c DRR.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Patrick McHardy <kaber@trash.net>
+ *
+ */
+
+#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: ... drr\n");
+}
+
+static void explain2(void)
+{
+ fprintf(stderr, "Usage: ... drr quantum SIZE\n");
+}
+
+
+static int drr_parse_opt(struct qdisc_util *qu, int argc, char **argv,
+ struct nlmsghdr *n, const char *dev)
+{
+ while (argc) {
+ if (strcmp(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "What is \"%s\"?\n", *argv);
+ explain();
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int drr_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
+ struct nlmsghdr *n, const char *dev)
+{
+ struct rtattr *tail;
+ __u32 tmp;
+
+ tail = addattr_nest(n, 1024, TCA_OPTIONS);
+
+ while (argc > 0) {
+ if (strcmp(*argv, "quantum") == 0) {
+ NEXT_ARG();
+ if (get_size(&tmp, *argv)) {
+ fprintf(stderr, "Illegal \"quantum\"\n");
+ return -1;
+ }
+ addattr_l(n, 1024, TCA_DRR_QUANTUM, &tmp, sizeof(tmp));
+ } else if (strcmp(*argv, "help") == 0) {
+ explain2();
+ return -1;
+ } else {
+ fprintf(stderr, "What is \"%s\"?\n", *argv);
+ explain2();
+ return -1;
+ }
+ argc--; argv++;
+ }
+
+ addattr_nest_end(n, tail);
+ return 0;
+}
+
+static int drr_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
+{
+ struct rtattr *tb[TCA_DRR_MAX + 1];
+
+ if (opt == NULL)
+ return 0;
+
+ parse_rtattr_nested(tb, TCA_DRR_MAX, opt);
+
+ if (tb[TCA_DRR_QUANTUM])
+ print_size(PRINT_FP, NULL, "quantum %s ",
+ rta_getattr_u32(tb[TCA_DRR_QUANTUM]));
+ return 0;
+}
+
+static int drr_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
+{
+ struct tc_drr_stats *x;
+
+ if (xstats == NULL)
+ return 0;
+ if (RTA_PAYLOAD(xstats) < sizeof(*x))
+ return -1;
+ x = RTA_DATA(xstats);
+
+ print_size(PRINT_FP, NULL, " deficit %s ", x->deficit);
+ return 0;
+}
+
+struct qdisc_util drr_qdisc_util = {
+ .id = "drr",
+ .parse_qopt = drr_parse_opt,
+ .print_qopt = drr_print_opt,
+ .print_xstats = drr_print_xstats,
+ .parse_copt = drr_parse_class_opt,
+ .print_copt = drr_print_opt,
+};