Adding upstream version 252.22.upstream/252.22

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

1 files changed, 91 insertions, 0 deletions

diff --git a/src/network/tc/sfq.c b/src/network/tc/sfq.c
new file mode 100644
index 0000000..92dbae1
--- /dev/null
+++ b/src/network/tc/sfq.c
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright © 2019 VMware, Inc. */
+
+#include <linux/pkt_sched.h>
+
+#include "alloc-util.h"
+#include "conf-parser.h"
+#include "netlink-util.h"
+#include "parse-util.h"
+#include "qdisc.h"
+#include "sfq.h"
+#include "string-util.h"
+
+static int stochastic_fairness_queueing_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
+        StochasticFairnessQueueing *sfq;
+        int r;
+
+        assert(link);
+        assert(qdisc);
+        assert(req);
+
+        assert_se(sfq = SFQ(qdisc));
+
+        const struct tc_sfq_qopt_v1 opt = {
+                .v0.perturb_period = sfq->perturb_period / USEC_PER_SEC,
+        };
+
+        r = sd_netlink_message_append_data(req, TCA_OPTIONS, &opt, sizeof(opt));
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+int config_parse_stochastic_fairness_queueing_perturb_period(
+                const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
+        StochasticFairnessQueueing *sfq;
+        Network *network = ASSERT_PTR(data);
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        r = qdisc_new_static(QDISC_KIND_SFQ, network, filename, section_line, &qdisc);
+        if (r == -ENOMEM)
+                return log_oom();
+        if (r < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, r,
+                           "More than one kind of queueing discipline, ignoring assignment: %m");
+                return 0;
+        }
+
+        sfq = SFQ(qdisc);
+
+        if (isempty(rvalue)) {
+                sfq->perturb_period = 0;
+
+                TAKE_PTR(qdisc);
+                return 0;
+        }
+
+        r = parse_sec(rvalue, &sfq->perturb_period);
+        if (r < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, r,
+                           "Failed to parse '%s=', ignoring assignment: %s",
+                           lvalue, rvalue);
+                return 0;
+        }
+
+        TAKE_PTR(qdisc);
+
+        return 0;
+}
+
+const QDiscVTable sfq_vtable = {
+        .object_size = sizeof(StochasticFairnessQueueing),
+        .tca_kind = "sfq",
+        .fill_message = stochastic_fairness_queueing_fill_message,
+};