xref: /aosp_15_r20/external/libnl/lib/cli/cls/basic.c (revision 4dc78e53d49367fa8e61b07018507c90983a077d)
1*4dc78e53SAndroid Build Coastguard Worker /* SPDX-License-Identifier: LGPL-2.1-only */
2*4dc78e53SAndroid Build Coastguard Worker /*
3*4dc78e53SAndroid Build Coastguard Worker  * Copyright (c) 2010-2011 Thomas Graf <[email protected]>
4*4dc78e53SAndroid Build Coastguard Worker  */
5*4dc78e53SAndroid Build Coastguard Worker 
6*4dc78e53SAndroid Build Coastguard Worker #include "nl-default.h"
7*4dc78e53SAndroid Build Coastguard Worker 
8*4dc78e53SAndroid Build Coastguard Worker #include <netlink/cli/utils.h>
9*4dc78e53SAndroid Build Coastguard Worker #include <netlink/cli/tc.h>
10*4dc78e53SAndroid Build Coastguard Worker #include <netlink/cli/cls.h>
11*4dc78e53SAndroid Build Coastguard Worker #include <netlink/route/cls/basic.h>
12*4dc78e53SAndroid Build Coastguard Worker 
13*4dc78e53SAndroid Build Coastguard Worker #include "base/nl-base-utils.h"
14*4dc78e53SAndroid Build Coastguard Worker 
print_usage(void)15*4dc78e53SAndroid Build Coastguard Worker static void print_usage(void)
16*4dc78e53SAndroid Build Coastguard Worker {
17*4dc78e53SAndroid Build Coastguard Worker 	printf(
18*4dc78e53SAndroid Build Coastguard Worker "Usage: nl-cls-add [...] basic [OPTIONS]...\n"
19*4dc78e53SAndroid Build Coastguard Worker "\n"
20*4dc78e53SAndroid Build Coastguard Worker "OPTIONS\n"
21*4dc78e53SAndroid Build Coastguard Worker " -h, --help                Show this help text.\n"
22*4dc78e53SAndroid Build Coastguard Worker " -t, --target=ID           Target class to send matching packets to\n"
23*4dc78e53SAndroid Build Coastguard Worker " -e, --ematch=EXPR         Ematch expression\n"
24*4dc78e53SAndroid Build Coastguard Worker "\n"
25*4dc78e53SAndroid Build Coastguard Worker "EXAMPLE"
26*4dc78e53SAndroid Build Coastguard Worker "    # Create a \"catch-all\" classifier, attached to \"q_root\", classyfing\n"
27*4dc78e53SAndroid Build Coastguard Worker "    # all not yet classified packets to class \"c_default\"\n"
28*4dc78e53SAndroid Build Coastguard Worker "    nl-cls-add --dev=eth0 --parent=q_root basic --target=c_default\n");
29*4dc78e53SAndroid Build Coastguard Worker }
30*4dc78e53SAndroid Build Coastguard Worker 
parse_argv(struct rtnl_tc * tc,int argc,char ** argv)31*4dc78e53SAndroid Build Coastguard Worker static void parse_argv(struct rtnl_tc *tc, int argc, char **argv)
32*4dc78e53SAndroid Build Coastguard Worker {
33*4dc78e53SAndroid Build Coastguard Worker 	struct rtnl_cls *cls = (struct rtnl_cls *) tc;
34*4dc78e53SAndroid Build Coastguard Worker 	struct rtnl_ematch_tree *tree;
35*4dc78e53SAndroid Build Coastguard Worker 	uint32_t target;
36*4dc78e53SAndroid Build Coastguard Worker 	int err;
37*4dc78e53SAndroid Build Coastguard Worker 
38*4dc78e53SAndroid Build Coastguard Worker 	for (;;) {
39*4dc78e53SAndroid Build Coastguard Worker 		int c, optidx = 0;
40*4dc78e53SAndroid Build Coastguard Worker 		enum {
41*4dc78e53SAndroid Build Coastguard Worker 			ARG_TARGET = 257,
42*4dc78e53SAndroid Build Coastguard Worker 			ARG_DEFAULT = 258,
43*4dc78e53SAndroid Build Coastguard Worker 		};
44*4dc78e53SAndroid Build Coastguard Worker 		static struct option long_opts[] = {
45*4dc78e53SAndroid Build Coastguard Worker 			{ "help", 0, 0, 'h' },
46*4dc78e53SAndroid Build Coastguard Worker 			{ "target", 1, 0, 't' },
47*4dc78e53SAndroid Build Coastguard Worker 			{ "ematch", 1, 0, 'e' },
48*4dc78e53SAndroid Build Coastguard Worker 			{ 0, 0, 0, 0 }
49*4dc78e53SAndroid Build Coastguard Worker 		};
50*4dc78e53SAndroid Build Coastguard Worker 
51*4dc78e53SAndroid Build Coastguard Worker 		c = getopt_long(argc, argv, "ht:e:", long_opts, &optidx);
52*4dc78e53SAndroid Build Coastguard Worker 		if (c == -1)
53*4dc78e53SAndroid Build Coastguard Worker 			break;
54*4dc78e53SAndroid Build Coastguard Worker 
55*4dc78e53SAndroid Build Coastguard Worker 		switch (c) {
56*4dc78e53SAndroid Build Coastguard Worker 		case 'h':
57*4dc78e53SAndroid Build Coastguard Worker 			print_usage();
58*4dc78e53SAndroid Build Coastguard Worker 			exit(0);
59*4dc78e53SAndroid Build Coastguard Worker 
60*4dc78e53SAndroid Build Coastguard Worker 		case 't':
61*4dc78e53SAndroid Build Coastguard Worker 			if ((err = rtnl_tc_str2handle(optarg, &target)) < 0)
62*4dc78e53SAndroid Build Coastguard Worker 				nl_cli_fatal(err, "Unable to parse target \"%s\":",
63*4dc78e53SAndroid Build Coastguard Worker 					optarg, nl_geterror(err));
64*4dc78e53SAndroid Build Coastguard Worker 
65*4dc78e53SAndroid Build Coastguard Worker 			rtnl_basic_set_target(cls, target);
66*4dc78e53SAndroid Build Coastguard Worker 			break;
67*4dc78e53SAndroid Build Coastguard Worker 
68*4dc78e53SAndroid Build Coastguard Worker 		case 'e':
69*4dc78e53SAndroid Build Coastguard Worker 			tree = nl_cli_cls_parse_ematch(cls, optarg);
70*4dc78e53SAndroid Build Coastguard Worker 			rtnl_basic_set_ematch(cls, tree);
71*4dc78e53SAndroid Build Coastguard Worker 			break;
72*4dc78e53SAndroid Build Coastguard Worker 		}
73*4dc78e53SAndroid Build Coastguard Worker 	}
74*4dc78e53SAndroid Build Coastguard Worker }
75*4dc78e53SAndroid Build Coastguard Worker 
76*4dc78e53SAndroid Build Coastguard Worker static struct nl_cli_tc_module basic_module =
77*4dc78e53SAndroid Build Coastguard Worker {
78*4dc78e53SAndroid Build Coastguard Worker 	.tm_name		= "basic",
79*4dc78e53SAndroid Build Coastguard Worker 	.tm_type		= RTNL_TC_TYPE_CLS,
80*4dc78e53SAndroid Build Coastguard Worker 	.tm_parse_argv		= parse_argv,
81*4dc78e53SAndroid Build Coastguard Worker };
82*4dc78e53SAndroid Build Coastguard Worker 
basic_init(void)83*4dc78e53SAndroid Build Coastguard Worker static void _nl_init basic_init(void)
84*4dc78e53SAndroid Build Coastguard Worker {
85*4dc78e53SAndroid Build Coastguard Worker 	nl_cli_tc_register(&basic_module);
86*4dc78e53SAndroid Build Coastguard Worker }
87*4dc78e53SAndroid Build Coastguard Worker 
basic_exit(void)88*4dc78e53SAndroid Build Coastguard Worker static void _nl_exit basic_exit(void)
89*4dc78e53SAndroid Build Coastguard Worker {
90*4dc78e53SAndroid Build Coastguard Worker 	nl_cli_tc_unregister(&basic_module);
91*4dc78e53SAndroid Build Coastguard Worker }
92