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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2008-2010 Thomas Graf <tgraf@suug.ch>
*/
#include <netlink/cli/utils.h>
#include <netlink/cli/cls.h>
#include <netlink/cli/link.h>
#include <linux/netlink.h>
static int quiet = 0, default_yes = 0, deleted = 0, interactive = 0;
static struct nl_sock *sock;
static void print_usage(void)
{
printf(
"Usage: nl-cls-delete [OPTION]... [class]\n"
"\n"
"OPTIONS\n"
" --interactive Run interactively.\n"
" --yes Set default answer to yes.\n"
" -q, --quiet Do not print informal notifications.\n"
" -h, --help Show this help text and exit.\n"
" -v, --version Show versioning information and exit.\n"
"\n"
" -d, --dev=DEV Device the classifer is attached to.\n"
" -p, --parent=ID Identifier of parent qdisc/class.\n"
" -i, --id=ID Identifier\n"
" -k, --kind=NAME Kind of classifier (e.g. basic, u32, fw)\n"
" --proto=PROTO Protocol to match (default: all)\n"
" --prio=PRIO Priority (default: 0)\n"
"\n"
"EXAMPLE\n"
" # Delete all classifiers on eth0 attached to parent q_root:\n"
" $ nl-cls-delete --dev eth0 --parent q_root:\n"
"\n"
);
exit(0);
}
static void delete_cb(struct nl_object *obj, void *arg)
{
struct rtnl_cls *cls = nl_object_priv(obj);
struct nl_dump_params params = {
.dp_type = NL_DUMP_LINE,
.dp_fd = stdout,
};
int err;
if (interactive && !nl_cli_confirm(obj, ¶ms, default_yes))
return;
if ((err = rtnl_cls_delete(sock, cls, 0)) < 0)
nl_cli_fatal(err, "Unable to delete classifier: %s\n",
nl_geterror(err));
if (!quiet) {
printf("Deleted ");
nl_object_dump(obj, ¶ms);
}
deleted++;
}
static void __delete_link(int ifindex, struct rtnl_cls *filter)
{
struct nl_cache *cache;
uint32_t parent = rtnl_tc_get_parent((struct rtnl_tc *) filter);
cache = nl_cli_cls_alloc_cache(sock, ifindex, parent);
nl_cache_foreach_filter(cache, OBJ_CAST(filter), delete_cb, NULL);
nl_cache_free(cache);
}
static void delete_link(struct nl_object *obj, void *arg)
{
struct rtnl_link *link = nl_object_priv(obj);
__delete_link(rtnl_link_get_ifindex(link), arg);
}
int main(int argc, char *argv[])
{
struct rtnl_cls *cls;
struct rtnl_tc *tc;
struct nl_cache *link_cache;
int ifindex;
sock = nl_cli_alloc_socket();
nl_cli_connect(sock, NETLINK_ROUTE);
link_cache = nl_cli_link_alloc_cache(sock);
cls = nl_cli_cls_alloc();
tc = (struct rtnl_tc *) cls;
for (;;) {
int c, optidx = 0;
enum {
ARG_YES = 257,
ARG_INTERACTIVE = 258,
ARG_PROTO,
ARG_PRIO,
};
static struct option long_opts[] = {
{ "interactive", 0, 0, ARG_INTERACTIVE },
{ "yes", 0, 0, ARG_YES },
{ "quiet", 0, 0, 'q' },
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ "dev", 1, 0, 'd' },
{ "parent", 1, 0, 'p' },
{ "id", 1, 0, 'i' },
{ "kind", 1, 0, 'k' },
{ "proto", 1, 0, ARG_PROTO },
{ "prio", 1, 0, ARG_PRIO },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "qhvd:p:i:k:", long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case '?': nl_cli_fatal(EINVAL, "Invalid options");
case ARG_INTERACTIVE: interactive = 1; break;
case ARG_YES: default_yes = 1; break;
case 'q': quiet = 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;
case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break;
case ARG_PRIO:
rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg));
break;
}
}
if ((ifindex = rtnl_tc_get_ifindex(tc)))
__delete_link(ifindex, cls);
else
nl_cache_foreach(link_cache, delete_link, cls);
if (!quiet)
printf("Deleted %d classs\n", deleted);
return 0;
}
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