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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2014 Cong Wang <xiyou.wangcong@gmail.com>
*/
#include "nl-default.h"
#include <linux/pkt_sched.h>
#include <netlink/cli/utils.h>
#include <netlink/cli/tc.h>
#include <netlink/route/qdisc/hfsc.h>
static void print_qdisc_usage(void)
{
printf(
"Usage: nl-qdisc-add [...] hfsc [OPTIONS]...\n"
"\n"
"OPTIONS\n"
" --help Show this help text.\n"
" --default=ID Default class for unclassified traffic.\n"
"\n"
"EXAMPLE"
" # Create hfsc root qdisc 1: and direct unclassified traffic to class 1:10\n"
" nl-qdisc-add --dev=eth1 --parent=root --handle=1: hfsc --default=10\n");
}
static void hfsc_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_DEFAULT = 257,
};
static struct option long_opts[] = {
{ "help", 0, 0, 'h' },
{ "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_DEFAULT:
rtnl_qdisc_hfsc_set_defcls(qdisc, nl_cli_parse_u32(optarg));
break;
}
}
}
static void print_class_usage(void)
{
printf(
"Usage: nl-class-add [...] hfsc [OPTIONS]...\n"
"\n"
"OPTIONS\n"
" --help Show this help text.\n"
" --ls=SC Link-sharing service curve\n"
" --rt=SC Real-time service curve\n"
" --sc=SC Specifiy both of the above\n"
" --ul=SC Upper limit\n"
" where SC := [ [ m1 bits ] d usec ] m2 bits\n"
"\n"
"EXAMPLE"
" # Attach class 1:1 to hfsc qdisc 1: and use rt and ls curve\n"
" nl-class-add --dev=eth1 --parent=1: --classid=1:1 hfsc --sc=m1:250,d:8,m2:100\n");
}
static int
hfsc_get_sc(char *optarg, struct tc_service_curve *sc)
{
unsigned int m1 = 0, d = 0, m2 = 0;
char *tmp = strdup(optarg);
char *p, *endptr;
char *pp = tmp;
if (!tmp)
return -ENOMEM;
p = strstr(pp, "m1:");
if (p) {
char *q;
p += 3;
if (*p == 0)
goto err;
q = strchr(p, ',');
if (!q)
goto err;
*q = 0;
m1 = strtoul(p, &endptr, 10);
if (endptr == p)
goto err;
pp = q + 1;
}
p = strstr(pp, "d:");
if (p) {
char *q;
p += 2;
if (*p == 0)
goto err;
q = strchr(p, ',');
if (!q)
goto err;
*q = 0;
d = strtoul(p, &endptr, 10);
if (endptr == p)
goto err;
pp = q + 1;
}
p = strstr(pp, "m2:");
if (p) {
p += 3;
if (*p == 0)
goto err;
m2 = strtoul(p, &endptr, 10);
if (endptr == p)
goto err;
} else
goto err;
free(tmp);
sc->m1 = m1;
sc->d = d;
sc->m2 = m2;
return 0;
err:
free(tmp);
return -EINVAL;
}
static void hfsc_parse_class_argv(struct rtnl_tc *tc, int argc, char **argv)
{
struct rtnl_class *class = (struct rtnl_class *) tc;
int arg_ok = 0, ret = -EINVAL;
for (;;) {
int c, optidx = 0;
enum {
ARG_RT = 257,
ARG_LS = 258,
ARG_SC,
ARG_UL,
};
static struct option long_opts[] = {
{ "help", 0, 0, 'h' },
{ "rt", 1, 0, ARG_RT },
{ "ls", 1, 0, ARG_LS },
{ "sc", 1, 0, ARG_SC },
{ "ul", 1, 0, ARG_UL },
{ 0, 0, 0, 0 }
};
struct tc_service_curve tsc;
c = getopt_long(argc, argv, "h", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case 'h':
print_class_usage();
return;
case ARG_RT:
ret = hfsc_get_sc(optarg, &tsc);
if (ret < 0) {
nl_cli_fatal(ret, "Unable to parse sc "
"\"%s\": Invalid format.", optarg);
}
rtnl_class_hfsc_set_rsc(class, &tsc);
arg_ok++;
break;
case ARG_LS:
ret = hfsc_get_sc(optarg, &tsc);
if (ret < 0) {
nl_cli_fatal(ret, "Unable to parse sc "
"\"%s\": Invalid format.", optarg);
}
rtnl_class_hfsc_set_fsc(class, &tsc);
arg_ok++;
break;
case ARG_SC:
ret = hfsc_get_sc(optarg, &tsc);
if (ret < 0) {
nl_cli_fatal(ret, "Unable to parse sc "
"\"%s\": Invalid format.", optarg);
}
rtnl_class_hfsc_set_rsc(class, &tsc);
rtnl_class_hfsc_set_fsc(class, &tsc);
arg_ok++;
break;
case ARG_UL:
ret = hfsc_get_sc(optarg, &tsc);
if (ret < 0) {
nl_cli_fatal(ret, "Unable to parse sc "
"\"%s\": Invalid format.", optarg);
}
rtnl_class_hfsc_set_usc(class, &tsc);
arg_ok++;
break;
}
}
if (!arg_ok)
nl_cli_fatal(ret, "Invalid arguments");
}
static struct nl_cli_tc_module hfsc_qdisc_module =
{
.tm_name = "hfsc",
.tm_type = RTNL_TC_TYPE_QDISC,
.tm_parse_argv = hfsc_parse_qdisc_argv,
};
static struct nl_cli_tc_module hfsc_class_module =
{
.tm_name = "hfsc",
.tm_type = RTNL_TC_TYPE_CLASS,
.tm_parse_argv = hfsc_parse_class_argv,
};
static void _nl_init hfsc_init(void)
{
nl_cli_tc_register(&hfsc_qdisc_module);
nl_cli_tc_register(&hfsc_class_module);
}
static void _nl_exit hfsc_exit(void)
{
nl_cli_tc_unregister(&hfsc_class_module);
nl_cli_tc_unregister(&hfsc_qdisc_module);
}
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