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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/network/tc/pie.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/network/tc/pie.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/network/tc/pie.c b/src/network/tc/pie.c new file mode 100644 index 0000000..c9b171b --- /dev/null +++ b/src/network/tc/pie.c @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later + * Copyright © 2020 VMware, Inc. */ + +#include <linux/pkt_sched.h> + +#include "alloc-util.h" +#include "conf-parser.h" +#include "pie.h" +#include "netlink-util.h" +#include "parse-util.h" +#include "string-util.h" + +static int pie_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) { + ProportionalIntegralControllerEnhanced *pie; + int r; + + assert(link); + assert(qdisc); + assert(req); + + assert_se(pie = PIE(qdisc)); + + r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "pie"); + if (r < 0) + return r; + + if (pie->packet_limit > 0) { + r = sd_netlink_message_append_u32(req, TCA_PIE_LIMIT, pie->packet_limit); + if (r < 0) + return r; + } + + r = sd_netlink_message_close_container(req); + if (r < 0) + return r; + + return 0; +} + +int config_parse_pie_packet_limit( + 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; + ProportionalIntegralControllerEnhanced *pie; + Network *network = ASSERT_PTR(data); + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = qdisc_new_static(QDISC_KIND_PIE, 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; + } + + pie = PIE(qdisc); + + if (isempty(rvalue)) { + pie->packet_limit = 0; + + TAKE_PTR(qdisc); + return 0; + } + + r = safe_atou32(rvalue, &pie->packet_limit); + 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 pie_vtable = { + .object_size = sizeof(ProportionalIntegralControllerEnhanced), + .tca_kind = "pie", + .fill_message = pie_fill_message, +}; |