280 lines
8.9 KiB
C
280 lines
8.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
|
|
|
|
#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 "htb.h"
|
|
#include "string-util.h"
|
|
#include "tc-util.h"
|
|
|
|
static int hierarchy_token_bucket_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
|
|
HierarchyTokenBucket *htb;
|
|
struct tc_htb_glob opt = {
|
|
.rate2quantum = 10,
|
|
.version = 3,
|
|
};
|
|
int r;
|
|
|
|
assert(link);
|
|
assert(qdisc);
|
|
assert(req);
|
|
|
|
htb = HTB(qdisc);
|
|
|
|
opt.defcls = htb->default_class;
|
|
|
|
r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "htb");
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
|
|
|
|
r = sd_netlink_message_append_data(req, TCA_HTB_INIT, &opt, sizeof(opt));
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_INIT 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_hierarchy_token_bucket_default_class(
|
|
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;
|
|
HierarchyTokenBucket *htb;
|
|
Network *network = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = qdisc_new_static(QDISC_KIND_HTB, network, filename, section_line, &qdisc);
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0)
|
|
return log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"More than one kind of queueing discipline, ignoring assignment: %m");
|
|
|
|
htb = HTB(qdisc);
|
|
|
|
if (isempty(rvalue)) {
|
|
htb->default_class = 0;
|
|
|
|
qdisc = NULL;
|
|
return 0;
|
|
}
|
|
|
|
r = safe_atou32_full(rvalue, 16, &htb->default_class);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse '%s=', ignoring assignment: %s",
|
|
lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
qdisc = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const QDiscVTable htb_vtable = {
|
|
.object_size = sizeof(HierarchyTokenBucket),
|
|
.tca_kind = "htb",
|
|
.fill_message = hierarchy_token_bucket_fill_message,
|
|
};
|
|
|
|
static int hierarchy_token_bucket_class_fill_message(Link *link, TClass *tclass, sd_netlink_message *req) {
|
|
HierarchyTokenBucketClass *htb;
|
|
struct tc_htb_opt opt = {};
|
|
uint32_t rtab[256], ctab[256], mtu = 1600; /* Ethernet packet length */
|
|
int r;
|
|
|
|
assert(link);
|
|
assert(tclass);
|
|
assert(req);
|
|
|
|
htb = TCLASS_TO_HTB(tclass);
|
|
|
|
if (htb->ceil_rate == 0)
|
|
htb->ceil_rate = htb->rate;
|
|
|
|
opt.prio = htb->priority;
|
|
opt.rate.rate = (htb->rate >= (1ULL << 32)) ? ~0U : htb->rate;
|
|
opt.ceil.rate = (htb->ceil_rate >= (1ULL << 32)) ? ~0U : htb->ceil_rate;
|
|
r = tc_transmit_time(htb->rate, mtu, &opt.buffer);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Failed to calculate buffer size: %m");
|
|
|
|
r = tc_transmit_time(htb->ceil_rate, mtu, &opt.cbuffer);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Failed to calculate ceil buffer size: %m");
|
|
|
|
r = tc_fill_ratespec_and_table(&opt.rate, rtab, mtu);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Failed to calculate rate table: %m");
|
|
|
|
r = tc_fill_ratespec_and_table(&opt.ceil, ctab, mtu);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Failed to calculate ceil rate table: %m");
|
|
|
|
r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "htb");
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
|
|
|
|
r = sd_netlink_message_append_data(req, TCA_HTB_PARMS, &opt, sizeof(opt));
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_PARMS attribute: %m");
|
|
|
|
if (htb->rate >= (1ULL << 32)) {
|
|
r = sd_netlink_message_append_u64(req, TCA_HTB_RATE64, htb->rate);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_RATE64 attribute: %m");
|
|
}
|
|
|
|
if (htb->ceil_rate >= (1ULL << 32)) {
|
|
r = sd_netlink_message_append_u64(req, TCA_HTB_CEIL64, htb->ceil_rate);
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_CEIL64 attribute: %m");
|
|
}
|
|
|
|
r = sd_netlink_message_append_data(req, TCA_HTB_RTAB, rtab, sizeof(rtab));
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_RTAB attribute: %m");
|
|
|
|
r = sd_netlink_message_append_data(req, TCA_HTB_CTAB, ctab, sizeof(ctab));
|
|
if (r < 0)
|
|
return log_link_error_errno(link, r, "Could not append TCA_HTB_CTAB 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_hierarchy_token_bucket_u32(
|
|
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_(tclass_free_or_set_invalidp) TClass *tclass = NULL;
|
|
HierarchyTokenBucketClass *htb;
|
|
Network *network = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = tclass_new_static(TCLASS_KIND_HTB, network, filename, section_line, &tclass);
|
|
if (r < 0)
|
|
return log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to create traffic control class, ignoring assignment: %m");
|
|
|
|
htb = TCLASS_TO_HTB(tclass);
|
|
|
|
if (isempty(rvalue)) {
|
|
htb->priority = 0;
|
|
|
|
tclass = NULL;
|
|
return 0;
|
|
}
|
|
|
|
r = safe_atou32(rvalue, &htb->priority);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse '%s=', ignoring assignment: %s",
|
|
lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
tclass = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_hierarchy_token_bucket_rate(
|
|
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_(tclass_free_or_set_invalidp) TClass *tclass = NULL;
|
|
HierarchyTokenBucketClass *htb;
|
|
Network *network = data;
|
|
uint64_t *v;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = tclass_new_static(TCLASS_KIND_HTB, network, filename, section_line, &tclass);
|
|
if (r < 0)
|
|
return log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to create traffic control class, ignoring assignment: %m");
|
|
|
|
htb = TCLASS_TO_HTB(tclass);
|
|
if (streq(lvalue, "Rate"))
|
|
v = &htb->rate;
|
|
else if (streq(lvalue, "CeilRate"))
|
|
v = &htb->ceil_rate;
|
|
else
|
|
assert_not_reached("Invalid lvalue");
|
|
|
|
if (isempty(rvalue)) {
|
|
*v = 0;
|
|
|
|
tclass = NULL;
|
|
return 0;
|
|
}
|
|
|
|
r = parse_size(rvalue, 1000, v);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to parse '%s=', ignoring assignment: %s",
|
|
lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*v /= 8;
|
|
tclass = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const TClassVTable htb_tclass_vtable = {
|
|
.object_size = sizeof(HierarchyTokenBucketClass),
|
|
.tca_kind = "htb",
|
|
.fill_message = hierarchy_token_bucket_class_fill_message,
|
|
};
|