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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
*/
#include "nl-default.h"
#include <linux/pkt_sched.h>
#include <linux/netlink.h>
#include <netlink/cli/utils.h>
#include <netlink/cli/tc.h>
#include <netlink/cli/qdisc.h>
#include <netlink/cli/class.h>
#include <netlink/cli/cls.h>
#include <netlink/cli/link.h>
#define NUM_INDENT 4
static struct nl_sock *sock;
static int recursive = 0;
static struct nl_dump_params params = {
.dp_type = NL_DUMP_LINE,
};
static void print_usage(void)
{
printf(
"Usage: nl-qdisc-list [OPTION]... [QDISC]\n"
"\n"
"OPTIONS\n"
" --details Show details\n"
" --stats Show statistics\n"
" -r, --recursive Show recursive tree\n"
" -h, --help Show this help\n"
" -v, --version Show versioning information\n"
"\n"
" -d, --dev=DEV Device the qdisc is attached to. (default: all)\n"
" -p, --parent=ID Identifier of parent qdisc.\n"
" -i, --id=ID Identifier.\n"
" -k, --kind=NAME Kind of qdisc (e.g. pfifo_fast)\n"
"\n"
"EXAMPLE\n"
" # Display statistics of all qdiscs attached to eth0\n"
" $ nl-qdisc-list --details --dev=eth0\n"
"\n"
);
exit(0);
}
static void list_classes(int ifindex, uint32_t parent);
static void list_qdiscs(int ifindex, uint32_t parent);
static void list_class(struct nl_object *obj, void *arg)
{
struct rtnl_tc *tc = nl_object_priv(obj);
nl_object_dump(obj, ¶ms);
list_classes(rtnl_tc_get_ifindex(tc), rtnl_tc_get_handle(tc));
list_qdiscs(rtnl_tc_get_ifindex(tc), rtnl_tc_get_handle(tc));
}
static void list_classes(int ifindex, uint32_t parent)
{
struct nl_cache *class_cache;
struct rtnl_class *filter = nl_cli_class_alloc();
class_cache = nl_cli_class_alloc_cache(sock, ifindex);
rtnl_tc_set_parent((struct rtnl_tc *) filter, parent);
params.dp_prefix += NUM_INDENT;
nl_cache_foreach_filter(class_cache, OBJ_CAST(filter), list_class, NULL);
params.dp_prefix -= NUM_INDENT;
rtnl_class_put(filter);
nl_cache_free(class_cache);
}
static void list_cls(int ifindex, uint32_t parent)
{
struct nl_cache *cls_cache;
cls_cache = nl_cli_cls_alloc_cache(sock, ifindex, parent);
params.dp_prefix += NUM_INDENT;
nl_cache_dump(cls_cache, ¶ms);
params.dp_prefix -= NUM_INDENT;
nl_cache_free(cls_cache);
}
static void list_qdisc(struct nl_object *obj, void *arg)
{
struct rtnl_qdisc *qdisc = nl_object_priv(obj);
struct rtnl_tc *tc = (struct rtnl_tc *) qdisc;
nl_object_dump(obj, ¶ms);
list_cls(rtnl_tc_get_ifindex(tc), rtnl_tc_get_handle(tc));
if (rtnl_tc_get_parent(tc) == TC_H_ROOT) {
list_cls(rtnl_tc_get_ifindex(tc), TC_H_ROOT);
list_classes(rtnl_tc_get_ifindex(tc), TC_H_ROOT);
}
list_classes(rtnl_tc_get_ifindex(tc), rtnl_tc_get_handle(tc));
}
static void list_qdiscs(int ifindex, uint32_t parent)
{
struct nl_cache *qdisc_cache;
struct rtnl_qdisc *filter = nl_cli_qdisc_alloc();
qdisc_cache = nl_cli_qdisc_alloc_cache(sock);
rtnl_tc_set_ifindex((struct rtnl_tc *) filter, ifindex);
rtnl_tc_set_parent((struct rtnl_tc *) filter, parent);
params.dp_prefix += NUM_INDENT;
nl_cache_foreach_filter(qdisc_cache, OBJ_CAST(filter), list_qdisc, NULL);
params.dp_prefix -= NUM_INDENT;
rtnl_qdisc_put(filter);
nl_cache_free(qdisc_cache);
}
int main(int argc, char *argv[])
{
struct rtnl_qdisc *qdisc;
struct rtnl_tc *tc;
struct nl_cache *link_cache, *qdisc_cache;
params.dp_fd = stdout;
sock = nl_cli_alloc_socket();
nl_cli_connect(sock, NETLINK_ROUTE);
link_cache = nl_cli_link_alloc_cache(sock);
qdisc_cache = nl_cli_qdisc_alloc_cache(sock);
qdisc = nl_cli_qdisc_alloc();
tc = (struct rtnl_tc *) qdisc;
for (;;) {
int c, optidx = 0;
enum {
ARG_DETAILS = 257,
ARG_STATS = 258,
};
static struct option long_opts[] = {
{ "details", 0, 0, ARG_DETAILS },
{ "stats", 0, 0, ARG_STATS },
{ "recursive", 0, 0, 'r' },
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ "dev", 1, 0, 'd' },
{ "parent", 1, 0, 'p' },
{ "id", 1, 0, 'i' },
{ "kind", 1, 0, 'k' },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "rhvd:p:i:k:", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break;
case ARG_STATS: params.dp_type = NL_DUMP_STATS; break;
case 'r': recursive = 1; break;
case 'h': print_usage(); break;
case 'v': nl_cli_print_version(); break;
case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break;
case 'p': nl_cli_tc_parse_parent(tc, optarg); break;
case 'i': nl_cli_tc_parse_handle(tc, optarg, 0); break;
case 'k': nl_cli_tc_parse_kind(tc, optarg); break;
}
}
if (recursive)
nl_cache_foreach_filter(qdisc_cache, OBJ_CAST(qdisc), list_qdisc, NULL);
else
nl_cache_dump_filter(qdisc_cache, ¶ms, OBJ_CAST(qdisc));
return 0;
}
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