347 lines
11 KiB
C
347 lines
11 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+
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* Copyright © 2019 VMware, Inc. */
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#include <linux/pkt_sched.h>
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#include "alloc-util.h"
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#include "conf-parser.h"
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#include "netlink-util.h"
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#include "parse-util.h"
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#include "qdisc.h"
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#include "string-util.h"
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static int fair_queuing_controlled_delay_init(QDisc *qdisc) {
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FairQueuingControlledDelay *fqcd;
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assert(qdisc);
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fqcd = FQ_CODEL(qdisc);
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fqcd->memory_limit = UINT32_MAX;
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fqcd->ce_threshold_usec = USEC_INFINITY;
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fqcd->ecn = -1;
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return 0;
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}
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static int fair_queuing_controlled_delay_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
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FairQueuingControlledDelay *fqcd;
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int r;
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assert(link);
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assert(qdisc);
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assert(req);
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fqcd = FQ_CODEL(qdisc);
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r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "fq_codel");
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if (r < 0)
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return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
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if (fqcd->packet_limit > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_LIMIT, fqcd->packet_limit);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_LIMIT attribute: %m");
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}
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if (fqcd->flows > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_FLOWS, fqcd->flows);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_FLOWS attribute: %m");
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}
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if (fqcd->quantum > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_QUANTUM, fqcd->quantum);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_QUANTUM attribute: %m");
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}
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if (fqcd->interval_usec > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_INTERVAL, fqcd->interval_usec);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_INTERVAL attribute: %m");
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}
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if (fqcd->target_usec > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_TARGET, fqcd->target_usec);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_TARGET attribute: %m");
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}
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if (fqcd->ecn >= 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_ECN, fqcd->ecn);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_ECN attribute: %m");
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}
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if (fqcd->ce_threshold_usec != USEC_INFINITY) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_CE_THRESHOLD, fqcd->ce_threshold_usec);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_CE_THRESHOLD attribute: %m");
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}
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if (fqcd->memory_limit != UINT32_MAX) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_MEMORY_LIMIT, fqcd->memory_limit);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_MEMORY_LIMIT attribute: %m");
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}
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
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return 0;
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}
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int config_parse_tc_fair_queuing_controlled_delay_u32(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
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FairQueuingControlledDelay *fqcd;
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Network *network = data;
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uint32_t *p;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0)
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return log_syntax(unit, LOG_ERR, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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fqcd = FQ_CODEL(qdisc);
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if (streq(lvalue, "FairQueuingControlledDelayPacketLimit"))
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p = &fqcd->packet_limit;
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else if (streq(lvalue, "FairQueuingControlledDelayFlows"))
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p = &fqcd->flows;
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else
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assert_not_reached("Invalid lvalue.");
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if (isempty(rvalue)) {
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*p = 0;
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qdisc = NULL;
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return 0;
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}
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r = safe_atou32(rvalue, p);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Failed to parse '%s=', ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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qdisc = NULL;
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return 0;
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}
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int config_parse_tc_fair_queuing_controlled_delay_usec(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
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FairQueuingControlledDelay *fqcd;
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Network *network = data;
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usec_t *p;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0)
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return log_syntax(unit, LOG_ERR, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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fqcd = FQ_CODEL(qdisc);
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if (streq(lvalue, "FairQueuingControlledDelayTargetSec"))
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p = &fqcd->target_usec;
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else if (streq(lvalue, "FairQueuingControlledDelayIntervalSec"))
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p = &fqcd->interval_usec;
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else if (streq(lvalue, "FairQueuingControlledDelayCEThresholdSec"))
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p = &fqcd->ce_threshold_usec;
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else
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assert_not_reached("Invalid lvalue.");
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if (isempty(rvalue)) {
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if (streq(lvalue, "FairQueuingControlledDelayCEThresholdSec"))
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*p = USEC_INFINITY;
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else
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*p = 0;
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qdisc = NULL;
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return 0;
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}
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r = parse_sec(rvalue, p);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Failed to parse '%s=', ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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qdisc = NULL;
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return 0;
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}
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int config_parse_tc_fair_queuing_controlled_delay_bool(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
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FairQueuingControlledDelay *fqcd;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0)
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return log_syntax(unit, LOG_ERR, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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fqcd = FQ_CODEL(qdisc);
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if (isempty(rvalue)) {
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fqcd->ecn = -1;
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qdisc = NULL;
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return 0;
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}
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r = parse_boolean(rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Failed to parse '%s=', ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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fqcd->ecn = r;
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qdisc = NULL;
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return 0;
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}
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int config_parse_tc_fair_queuing_controlled_delay_size(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
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FairQueuingControlledDelay *fqcd;
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Network *network = data;
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uint64_t sz;
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uint32_t *p;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0)
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return log_syntax(unit, LOG_ERR, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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fqcd = FQ_CODEL(qdisc);
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if (streq(lvalue, "FairQueuingControlledDelayMemoryLimit"))
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p = &fqcd->memory_limit;
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else if (streq(lvalue, "FairQueuingControlledDelayQuantum"))
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p = &fqcd->quantum;
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else
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assert_not_reached("Invalid lvalue.");
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if (isempty(rvalue)) {
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if (streq(lvalue, "FairQueuingControlledMemoryLimit"))
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*p = UINT32_MAX;
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else
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*p = 0;
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qdisc = NULL;
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return 0;
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}
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r = parse_size(rvalue, 1024, &sz);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Failed to parse '%s=', ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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if (sz >= UINT32_MAX) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Specified '%s=' is too large, ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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*p = sz;
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qdisc = NULL;
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return 0;
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}
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const QDiscVTable fq_codel_vtable = {
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.object_size = sizeof(FairQueuingControlledDelay),
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.tca_kind = "fq_codel",
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.init = fair_queuing_controlled_delay_init,
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.fill_message = fair_queuing_controlled_delay_fill_message,
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};
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