</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>TokenBufferFilterLatencySec=</varname></term>
+ <listitem>
+ <para>Specifies the latency parameter, which specifies the maximum amount of time a
+ packet can sit in the Token Buffer Filter (TBF). Defaults to unset.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>TokenBufferFilterBurst=</varname></term>
+ <listitem>
+ <para>Specifies the size of the bucket. This is the maximum amount of bytes that tokens
+ can be available for instantaneous transfer. When the size is suffixed with K, M, or G, it is
+ parsed as Kilobytes, Megabytes, or Gigabytes, respectively, to the base of 1000. Defaults to
+ unset.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>TokenBufferFilterRate=</varname></term>
+ <listitem>
+ <para>Specifies the device specific bandwidth. When suffixed with K, M, or G, the specified
+ bandwidth is parsed as Kilobytes, Megabytes, or Gigabytes, respectively, to the base of 1000.
+ Defaults to unset.</para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</refsect1>
TrafficControlQueueingDiscipline.NetworkEmulatorLossRate, config_parse_tc_network_emulator_rate, 0, 0
TrafficControlQueueingDiscipline.NetworkEmulatorDuplicateRate, config_parse_tc_network_emulator_rate, 0, 0
TrafficControlQueueingDiscipline.NetworkEmulatorPacketLimit, config_parse_tc_network_emulator_packet_limit, 0, 0
+TrafficControlQueueingDiscipline.TokenBufferFilterRate, config_parse_tc_token_buffer_filter_size, 0, 0
+TrafficControlQueueingDiscipline.TokenBufferFilterBurst, config_parse_tc_token_buffer_filter_size, 0, 0
+TrafficControlQueueingDiscipline.TokenBufferFilterLatencySec, config_parse_tc_token_buffer_filter_latency, 0, 0
/* backwards compatibility: do not add new entries to this section */
Network.IPv4LL, config_parse_ipv4ll, 0, offsetof(Network, link_local)
DHCP.ClientIdentifier, config_parse_dhcp_client_identifier, 0, offsetof(Network, dhcp_client_identifier)
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+
+ * Copyright © 2019 VMware, Inc. */
+
+#include <linux/pkt_sched.h>
+#include <math.h>
+
+#include "alloc-util.h"
+#include "conf-parser.h"
+#include "netem.h"
+#include "netlink-util.h"
+#include "networkd-manager.h"
+#include "parse-util.h"
+#include "qdisc.h"
+#include "string-util.h"
+#include "util.h"
+
+int token_buffer_filter_new(TokenBufferFilter **ret) {
+ TokenBufferFilter *ne = NULL;
+
+ ne = new0(TokenBufferFilter, 1);
+ if (!ne)
+ return -ENOMEM;
+
+ *ret = TAKE_PTR(ne);
+
+ return 0;
+}
+
+int token_buffer_filter_fill_message(Link *link, const TokenBufferFilter *tbf, sd_netlink_message *req) {
+ struct tc_tbf_qopt opt = {};
+ int r;
+
+ assert(link);
+ assert(tbf);
+ assert(req);
+
+ opt.rate.rate = tbf->rate >= (1ULL << 32) ? ~0U : tbf->rate;
+ opt.limit = tbf->rate * (double) tbf->latency / USEC_PER_SEC + tbf->burst;
+
+ r = sd_netlink_message_open_array(req, TCA_OPTIONS);
+ 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_TBF_PARMS, &opt, sizeof(struct tc_tbf_qopt));
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_TBF_PARMS attribute: %m");
+
+ r = sd_netlink_message_append_data(req, TCA_TBF_BURST, &tbf->burst, sizeof(tbf->burst));
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_TBF_BURST attribute: %m");
+
+ if (tbf->rate >= (1ULL << 32)) {
+ r = sd_netlink_message_append_data(req, TCA_TBF_RATE64, &tbf->rate, sizeof(tbf->rate));
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_TBF_RATE64 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_token_buffer_filter_size(
+ 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) QDiscs *qdisc = NULL;
+ Network *network = data;
+ uint64_t k;
+ 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)) {
+ if (streq(lvalue, "TokenBufferFilterRate"))
+ qdisc->tbf.rate = 0;
+ else if (streq(lvalue, "TokenBufferFilterBurst"))
+ qdisc->tbf.burst = 0;
+
+ qdisc = NULL;
+ return 0;
+ }
+
+ r = parse_size(rvalue, 1000, &k);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ if (streq(lvalue, "TokenBufferFilterRate"))
+ qdisc->tbf.rate = k / 8;
+ else if (streq(lvalue, "TokenBufferFilterBurst"))
+ qdisc->tbf.burst = k;
+
+ qdisc->has_token_buffer_filter = true;
+ qdisc = NULL;
+
+ return 0;
+}
+
+int config_parse_tc_token_buffer_filter_latency(
+ 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) QDiscs *qdisc = NULL;
+ Network *network = data;
+ usec_t u;
+ 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->tbf.latency = 0;
+
+ qdisc = NULL;
+ return 0;
+ }
+
+ r = parse_sec(rvalue, &u);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ qdisc->tbf.latency = u;
+
+ qdisc->has_token_buffer_filter = true;
+ qdisc = NULL;
+
+ return 0;
+}
projects / thirdparty / systemd.git / commitdiff
