Systemd/src/network/tc/fq-codel.c

92 lines
2.5 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+
* 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 "string-util.h"
int fair_queuing_controlled_delay_new(FairQueuingControlledDelay **ret) {
FairQueuingControlledDelay *fqcd = NULL;
fqcd = new0(FairQueuingControlledDelay, 1);
if (!fqcd)
return -ENOMEM;
*ret = TAKE_PTR(fqcd);
return 0;
}
int fair_queuing_controlled_delay_fill_message(Link *link, const FairQueuingControlledDelay *fqcd, sd_netlink_message *req) {
int r;
assert(link);
assert(fqcd);
assert(req);
r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "fq_codel");
if (r < 0)
return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_LIMIT, fqcd->limit);
if (r < 0)
return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_LIMIT attribute: %m");
r = sd_netlink_message_close_container(req);
if (r < 0)
return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
return 0;
}
int config_parse_tc_fair_queuing_controlled_delay_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;
Network *network = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
r = qdisc_new_static(network, filename, section_line, &qdisc);
if (r < 0)
return r;
if (isempty(rvalue)) {
qdisc->fq_codel.limit = 0;
qdisc = NULL;
return 0;
}
r = safe_atou32(rvalue, &qdisc->fq_codel.limit);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, r,
"Failed to parse '%s=', ignoring assignment: %s",
lvalue, rvalue);
return 0;
}
qdisc->has_fair_queuing_controlled_delay = true;
qdisc = NULL;
return 0;
}