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/*
* src/lib/htb.c HTB module for CLI lib
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
*/
#include <netlink/cli/utils.h>
#include <netlink/cli/tc.h>
#include <netlink/route/qdisc/htb.h>
static void print_qdisc_usage(void)
{
printf(
"Usage: nl-qdisc-add [...] htb [OPTIONS]...\n"
"\n"
"OPTIONS\n"
" --help Show this help text.\n"
" --r2q=DIV Rate to quantum divisor (default: 10)\n"
" --default=ID Default class for unclassified traffic.\n"
"\n"
"EXAMPLE"
" # Create htb root qdisc 1: and direct unclassified traffic to class 1:10\n"
" nl-qdisc-add --dev=eth1 --parent=root --handle=1: htb --default=10\n");
}
static void htb_parse_qdisc_argv(struct rtnl_tc *tc, int argc, char **argv)
{
struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) tc;
for (;;) {
int c, optidx = 0;
enum {
ARG_R2Q = 257,
ARG_DEFAULT = 258,
};
static struct option long_opts[] = {
{ "help", 0, 0, 'h' },
{ "r2q", 1, 0, ARG_R2Q },
{ "default", 1, 0, ARG_DEFAULT },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "hv", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case 'h':
print_qdisc_usage();
return;
case ARG_R2Q:
rtnl_htb_set_rate2quantum(qdisc, nl_cli_parse_u32(optarg));
break;
case ARG_DEFAULT:
rtnl_htb_set_defcls(qdisc, nl_cli_parse_u32(optarg));
break;
}
}
}
static void print_class_usage(void)
{
printf(
"Usage: nl-class-add [...] htb [OPTIONS]...\n"
"\n"
"OPTIONS\n"
" --help Show this help text.\n"
" --rate=RATE Rate limit.\n"
" --ceil=RATE Rate limit while borrowing (default: equal to --rate).\n"
" --prio=PRIO Priority, lower is served first (default: 0).\n"
" --quantum=SIZE Amount of bytes to serve at once (default: rate/r2q).\n"
" --burst=SIZE Max charge size of rate burst buffer (default: auto).\n"
" --cburst=SIZE Max charge size of ceil rate burst buffer (default: auto)\n"
"\n"
"EXAMPLE"
" # Attach class 1:1 to htb qdisc 1: and rate limit it to 20mbit\n"
" nl-class-add --dev=eth1 --parent=1: --classid=1:1 htb --rate=20mbit\n");
}
static void htb_parse_class_argv(struct rtnl_tc *tc, int argc, char **argv)
{
struct rtnl_class *class = (struct rtnl_class *) tc;
long rate;
for (;;) {
int c, optidx = 0;
enum {
ARG_RATE = 257,
ARG_QUANTUM = 258,
ARG_CEIL,
ARG_PRIO,
ARG_BURST,
ARG_CBURST,
};
static struct option long_opts[] = {
{ "help", 0, 0, 'h' },
{ "rate", 1, 0, ARG_RATE },
{ "quantum", 1, 0, ARG_QUANTUM },
{ "ceil", 1, 0, ARG_CEIL },
{ "prio", 1, 0, ARG_PRIO },
{ "burst", 1, 0, ARG_BURST },
{ "cburst", 1, 0, ARG_CBURST },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "h", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case 'h':
print_class_usage();
return;
case ARG_RATE:
rate = nl_size2int(optarg);
if (rate < 0) {
nl_cli_fatal(rate, "Unable to parse htb rate "
"\"%s\": Invalid format.", optarg);
}
rtnl_htb_set_rate(class, rate);
break;
case ARG_CEIL:
rate = nl_size2int(optarg);
if (rate < 0) {
nl_cli_fatal(rate, "Unable to parse htb ceil rate "
"\"%s\": Invalid format.", optarg);
}
rtnl_htb_set_ceil(class, rate);
break;
case ARG_PRIO:
rtnl_htb_set_prio(class, nl_cli_parse_u32(optarg));
break;
case ARG_QUANTUM:
rate = nl_size2int(optarg);
if (rate < 0) {
nl_cli_fatal(rate, "Unable to parse quantum "
"\"%s\": Invalid format.", optarg);
}
rtnl_htb_set_quantum(class, rate);
break;
case ARG_BURST:
rate = nl_size2int(optarg);
if (rate < 0) {
nl_cli_fatal(rate, "Unable to parse burst "
"\"%s\": Invalid format.", optarg);
}
rtnl_htb_set_rbuffer(class, rate);
break;
case ARG_CBURST:
rate = nl_size2int(optarg);
if (rate < 0) {
nl_cli_fatal(rate, "Unable to parse cburst "
"\"%s\": Invalid format.", optarg);
}
rtnl_htb_set_cbuffer(class, rate);
break;
}
}
}
static struct nl_cli_tc_module htb_qdisc_module =
{
.tm_name = "htb",
.tm_type = RTNL_TC_TYPE_QDISC,
.tm_parse_argv = htb_parse_qdisc_argv,
};
static struct nl_cli_tc_module htb_class_module =
{
.tm_name = "htb",
.tm_type = RTNL_TC_TYPE_CLASS,
.tm_parse_argv = htb_parse_class_argv,
};
static void __init htb_init(void)
{
nl_cli_tc_register(&htb_qdisc_module);
nl_cli_tc_register(&htb_class_module);
}
static void __exit htb_exit(void)
{
nl_cli_tc_unregister(&htb_class_module);
nl_cli_tc_unregister(&htb_qdisc_module);
}
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