[mirror_iproute2.git] / tc / tc.c

/*
 * tc.c		"tc" utility frontend.
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 * Fixes:
 *
 * Petri Mattila <petri@prihateam.fi> 990308: wrong memset's resulted in faults
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <dlfcn.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <errno.h>

#include "SNAPSHOT.h"
#include "utils.h"
#include "tc_util.h"
#include "tc_common.h"
#include "namespace.h"
#include "rt_names.h"

int show_stats;
int show_details;
int show_raw;
int show_graph;
int timestamp;

int batch_mode;
int use_iec;
int force;
bool use_names;
int json;
int color;
int oneline;

static char *conf_file;

struct rtnl_handle rth;

static void *BODY;	/* cached handle dlopen(NULL) */
static struct qdisc_util *qdisc_list;
static struct filter_util *filter_list;

static int print_noqopt(struct qdisc_util *qu, FILE *f,
			struct rtattr *opt)
{
	if (opt && RTA_PAYLOAD(opt))
		fprintf(f, "[Unknown qdisc, optlen=%u] ",
			(unsigned int) RTA_PAYLOAD(opt));
	return 0;
}

static int parse_noqopt(struct qdisc_util *qu, int argc, char **argv,
			struct nlmsghdr *n, const char *dev)
{
	if (argc) {
		fprintf(stderr,
			"Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n",
			qu->id, *argv);
		return -1;
	}
	return 0;
}

static int print_nofopt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 fhandle)
{
	if (opt && RTA_PAYLOAD(opt))
		fprintf(f, "fh %08x [Unknown filter, optlen=%u] ",
			fhandle, (unsigned int) RTA_PAYLOAD(opt));
	else if (fhandle)
		fprintf(f, "fh %08x ", fhandle);
	return 0;
}

static int parse_nofopt(struct filter_util *qu, char *fhandle,
			int argc, char **argv, struct nlmsghdr *n)
{
	__u32 handle;

	if (argc) {
		fprintf(stderr,
			"Unknown filter \"%s\", hence option \"%s\" is unparsable\n",
			qu->id, *argv);
		return -1;
	}
	if (fhandle) {
		struct tcmsg *t = NLMSG_DATA(n);

		if (get_u32(&handle, fhandle, 16)) {
			fprintf(stderr, "Unparsable filter ID \"%s\"\n", fhandle);
			return -1;
		}
		t->tcm_handle = handle;
	}
	return 0;
}

struct qdisc_util *get_qdisc_kind(const char *str)
{
	void *dlh;
	char buf[256];
	struct qdisc_util *q;

	for (q = qdisc_list; q; q = q->next)
		if (strcmp(q->id, str) == 0)
			return q;

	snprintf(buf, sizeof(buf), "%s/q_%s.so", get_tc_lib(), str);
	dlh = dlopen(buf, RTLD_LAZY);
	if (!dlh) {
		/* look in current binary, only open once */
		dlh = BODY;
		if (dlh == NULL) {
			dlh = BODY = dlopen(NULL, RTLD_LAZY);
			if (dlh == NULL)
				goto noexist;
		}
	}

	snprintf(buf, sizeof(buf), "%s_qdisc_util", str);
	q = dlsym(dlh, buf);
	if (q == NULL)
		goto noexist;

reg:
	q->next = qdisc_list;
	qdisc_list = q;
	return q;

noexist:
	q = calloc(1, sizeof(*q));
	if (q) {
		q->id = strdup(str);
		q->parse_qopt = parse_noqopt;
		q->print_qopt = print_noqopt;
		goto reg;
	}
	return q;
}


struct filter_util *get_filter_kind(const char *str)
{
	void *dlh;
	char buf[256];
	struct filter_util *q;

	for (q = filter_list; q; q = q->next)
		if (strcmp(q->id, str) == 0)
			return q;

	snprintf(buf, sizeof(buf), "%s/f_%s.so", get_tc_lib(), str);
	dlh = dlopen(buf, RTLD_LAZY);
	if (dlh == NULL) {
		dlh = BODY;
		if (dlh == NULL) {
			dlh = BODY = dlopen(NULL, RTLD_LAZY);
			if (dlh == NULL)
				goto noexist;
		}
	}

	snprintf(buf, sizeof(buf), "%s_filter_util", str);
	q = dlsym(dlh, buf);
	if (q == NULL)
		goto noexist;

reg:
	q->next = filter_list;
	filter_list = q;
	return q;
noexist:
	q = calloc(1, sizeof(*q));
	if (q) {
		strncpy(q->id, str, 15);
		q->parse_fopt = parse_nofopt;
		q->print_fopt = print_nofopt;
		goto reg;
	}
	return q;
}

static void usage(void)
{
	fprintf(stderr,
		"Usage:	tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
		"	tc [-force] -batch filename\n"
		"where  OBJECT := { qdisc | class | filter | chain |\n"
		"		    action | monitor | exec }\n"
		"       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[aw] |\n"
		"		    -o[neline] | -j[son] | -p[retty] | -c[olor]\n"
		"		    -b[atch] [filename] | -n[etns] name | -N[umeric] |\n"
		"		     -nm | -nam[es] | { -cf | -conf } path }\n");
}

static int do_cmd(int argc, char **argv)
{
	if (matches(*argv, "qdisc") == 0)
		return do_qdisc(argc-1, argv+1);
	if (matches(*argv, "class") == 0)
		return do_class(argc-1, argv+1);
	if (matches(*argv, "filter") == 0)
		return do_filter(argc-1, argv+1);
	if (matches(*argv, "chain") == 0)
		return do_chain(argc-1, argv+1);
	if (matches(*argv, "actions") == 0)
		return do_action(argc-1, argv+1);
	if (matches(*argv, "monitor") == 0)
		return do_tcmonitor(argc-1, argv+1);
	if (matches(*argv, "exec") == 0)
		return do_exec(argc-1, argv+1);
	if (matches(*argv, "help") == 0) {
		usage();
		return 0;
	}

	fprintf(stderr, "Object \"%s\" is unknown, try \"tc help\".\n",
		*argv);
	return -1;
}

static int batch(const char *name)
{
	char *line = NULL;
	size_t len = 0;
	int ret = 0;

	batch_mode = 1;
	if (name && strcmp(name, "-") != 0) {
		if (freopen(name, "r", stdin) == NULL) {
			fprintf(stderr,
				"Cannot open file \"%s\" for reading: %s\n",
				name, strerror(errno));
			return -1;
		}
	}

	tc_core_init();

	if (rtnl_open(&rth, 0) < 0) {
		fprintf(stderr, "Cannot open rtnetlink\n");
		return -1;
	}

	cmdlineno = 0;
	while (getcmdline(&line, &len, stdin) != -1) {
		char *largv[100];
		int largc;

		largc = makeargs(line, largv, 100);
		if (largc == 0)
			continue;	/* blank line */

		if (do_cmd(largc, largv)) {
			fprintf(stderr, "Command failed %s:%d\n",
				name, cmdlineno);
			ret = 1;
			if (!force)
				break;
		}
		fflush(stdout);
	}

	free(line);
	rtnl_close(&rth);
	return ret;
}


int main(int argc, char **argv)
{
	int ret;
	char *batch_file = NULL;

	while (argc > 1) {
		if (argv[1][0] != '-')
			break;
		if (matches(argv[1], "-stats") == 0 ||
			 matches(argv[1], "-statistics") == 0) {
			++show_stats;
		} else if (matches(argv[1], "-details") == 0) {
			++show_details;
		} else if (matches(argv[1], "-raw") == 0) {
			++show_raw;
		} else if (matches(argv[1], "-pretty") == 0) {
			++pretty;
		} else if (matches(argv[1], "-graph") == 0) {
			show_graph = 1;
		} else if (matches(argv[1], "-Version") == 0) {
			printf("tc utility, iproute2-ss%s\n", SNAPSHOT);
			return 0;
		} else if (matches(argv[1], "-iec") == 0) {
			++use_iec;
		} else if (matches(argv[1], "-help") == 0) {
			usage();
			return 0;
		} else if (matches(argv[1], "-force") == 0) {
			++force;
		} else if (matches(argv[1], "-batch") == 0) {
			argc--;	argv++;
			if (argc <= 1)
				usage();
			batch_file = argv[1];
		} else if (matches(argv[1], "-netns") == 0) {
			NEXT_ARG();
			if (netns_switch(argv[1]))
				return -1;
		} else if (matches(argv[1], "-Numeric") == 0) {
			++numeric;
		} else if (matches(argv[1], "-names") == 0 ||
				matches(argv[1], "-nm") == 0) {
			use_names = true;
		} else if (matches(argv[1], "-cf") == 0 ||
				matches(argv[1], "-conf") == 0) {
			NEXT_ARG();
			conf_file = argv[1];
		} else if (matches_color(argv[1], &color)) {
		} else if (matches(argv[1], "-timestamp") == 0) {
			timestamp++;
		} else if (matches(argv[1], "-tshort") == 0) {
			++timestamp;
			++timestamp_short;
		} else if (matches(argv[1], "-json") == 0) {
			++json;
		} else if (matches(argv[1], "-oneline") == 0) {
			++oneline;
		} else {
			fprintf(stderr,
				"Option \"%s\" is unknown, try \"tc -help\".\n",
				argv[1]);
			return -1;
		}
		argc--;	argv++;
	}

	_SL_ = oneline ? "\\" : "\n";

	check_enable_color(color, json);

	if (batch_file)
		return batch(batch_file);

	if (argc <= 1) {
		usage();
		return 0;
	}

	tc_core_init();
	if (rtnl_open(&rth, 0) < 0) {
		fprintf(stderr, "Cannot open rtnetlink\n");
		exit(1);
	}

	if (use_names && cls_names_init(conf_file)) {
		ret = -1;
		goto Exit;
	}

	ret = do_cmd(argc-1, argv+1);
Exit:
	rtnl_close(&rth);

	if (use_names)
		cls_names_uninit();

	return ret;
}
Commit	Line	Data
aba5acdf SH	1	/*
	2	* tc.c "tc" utility frontend.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*
	9	* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
	10	*
	11	* Fixes:
	12	*
	13	* Petri Mattila <petri@prihateam.fi> 990308: wrong memset's resulted in faults
	14	*/
	15
	16	#include <stdio.h>
	17	#include <stdlib.h>
	18	#include <unistd.h>
aba5acdf SH	19	#include <fcntl.h>
	20	#include <dlfcn.h>
	21	#include <sys/socket.h>
	22	#include <netinet/in.h>
	23	#include <arpa/inet.h>
	24	#include <string.h>
	25	#include <errno.h>
	26
	27	#include "SNAPSHOT.h"
	28	#include "utils.h"
	29	#include "tc_util.h"
	30	#include "tc_common.h"
67e1d73b	31	#include "namespace.h"
31f45088	32	#include "rt_names.h"
aba5acdf	33
32a121cb SH	34	int show_stats;
	35	int show_details;
	36	int show_raw;
32a121cb	37	int show_graph;
32a6fbe5	38	int timestamp;
44dcfe82	39
32a121cb	40	int batch_mode;
32a121cb SH	41	int use_iec;
	42	int force;
	43	bool use_names;
c91d262f	44	int json;
2d165c08	45	int color;
6e8634eb	46	int oneline;
4612d04d VK	47
	48	static char *conf_file;
	49
7901660a	50	struct rtnl_handle rth;
aba5acdf	51
32a121cb SH	52	static void BODY; / cached handle dlopen(NULL) */
	53	static struct qdisc_util *qdisc_list;
	54	static struct filter_util *filter_list;
aba5acdf	55
ae665a52	56	static int print_noqopt(struct qdisc_util qu, FILE f,
1798c9d5	57	struct rtattr *opt)
aba5acdf SH	58	{
aba5acdf SH	59	if (opt && RTA_PAYLOAD(opt))
ae665a52	60	fprintf(f, "[Unknown qdisc, optlen=%u] ",
32a121cb	61	(unsigned int) RTA_PAYLOAD(opt));
aba5acdf SH	62	return 0;
	63	}
	64
fec62c0e SH	65	static int parse_noqopt(struct qdisc_util qu, int argc, char *argv,
fec62c0e SH	66	struct nlmsghdr n, const char dev)
aba5acdf SH	67	{
aba5acdf SH	68	if (argc) {
fec62c0e SH	69	fprintf(stderr,
	70	"Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n",
	71	qu->id, *argv);
aba5acdf SH	72	return -1;
	73	}
	74	return 0;
	75	}
	76
	77	static int print_nofopt(struct filter_util qu, FILE f, struct rtattr *opt, __u32 fhandle)
	78	{
	79	if (opt && RTA_PAYLOAD(opt))
ae665a52	80	fprintf(f, "fh %08x [Unknown filter, optlen=%u] ",
32a121cb	81	fhandle, (unsigned int) RTA_PAYLOAD(opt));
aba5acdf SH	82	else if (fhandle)
	83	fprintf(f, "fh %08x ", fhandle);
	84	return 0;
	85	}
	86
fec62c0e SH	87	static int parse_nofopt(struct filter_util qu, char fhandle,
fec62c0e SH	88	int argc, char *argv, struct nlmsghdr n)
aba5acdf SH	89	{
	90	__u32 handle;
	91
	92	if (argc) {
fec62c0e SH	93	fprintf(stderr,
	94	"Unknown filter \"%s\", hence option \"%s\" is unparsable\n",
	95	qu->id, *argv);
aba5acdf SH	96	return -1;
	97	}
	98	if (fhandle) {
	99	struct tcmsg *t = NLMSG_DATA(n);
32a121cb	100
aba5acdf SH	101	if (get_u32(&handle, fhandle, 16)) {
	102	fprintf(stderr, "Unparsable filter ID \"%s\"\n", fhandle);
	103	return -1;
	104	}
	105	t->tcm_handle = handle;
	106	}
	107	return 0;
	108	}
	109
4094db72	110	struct qdisc_util get_qdisc_kind(const char str)
aba5acdf SH	111	{
	112	void *dlh;
	113	char buf[256];
	114	struct qdisc_util *q;
	115
	116	for (q = qdisc_list; q; q = q->next)
	117	if (strcmp(q->id, str) == 0)
	118	return q;
	119
aa27f88c	120	snprintf(buf, sizeof(buf), "%s/q_%s.so", get_tc_lib(), str);
aba5acdf	121	dlh = dlopen(buf, RTLD_LAZY);
b7a45150 SH	122	if (!dlh) {
b7a45150 SH	123	/* look in current binary, only open once */
aba5acdf SH	124	dlh = BODY;
	125	if (dlh == NULL) {
	126	dlh = BODY = dlopen(NULL, RTLD_LAZY);
	127	if (dlh == NULL)
	128	goto noexist;
	129	}
	130	}
	131
95812b56	132	snprintf(buf, sizeof(buf), "%s_qdisc_util", str);
aba5acdf SH	133	q = dlsym(dlh, buf);
	134	if (q == NULL)
	135	goto noexist;
	136
	137	reg:
	138	q->next = qdisc_list;
	139	qdisc_list = q;
	140	return q;
	141
	142	noexist:
f89bb021	143	q = calloc(1, sizeof(*q));
aba5acdf	144	if (q) {
f89bb021	145	q->id = strdup(str);
aba5acdf SH	146	q->parse_qopt = parse_noqopt;
	147	q->print_qopt = print_noqopt;
	148	goto reg;
	149	}
	150	return q;
	151	}
	152
	153
4094db72	154	struct filter_util get_filter_kind(const char str)
aba5acdf SH	155	{
	156	void *dlh;
	157	char buf[256];
	158	struct filter_util *q;
	159
	160	for (q = filter_list; q; q = q->next)
	161	if (strcmp(q->id, str) == 0)
	162	return q;
	163
aa27f88c	164	snprintf(buf, sizeof(buf), "%s/f_%s.so", get_tc_lib(), str);
aba5acdf SH	165	dlh = dlopen(buf, RTLD_LAZY);
	166	if (dlh == NULL) {
	167	dlh = BODY;
	168	if (dlh == NULL) {
	169	dlh = BODY = dlopen(NULL, RTLD_LAZY);
	170	if (dlh == NULL)
	171	goto noexist;
	172	}
	173	}
	174
95812b56	175	snprintf(buf, sizeof(buf), "%s_filter_util", str);
aba5acdf SH	176	q = dlsym(dlh, buf);
	177	if (q == NULL)
	178	goto noexist;
	179
	180	reg:
	181	q->next = filter_list;
	182	filter_list = q;
	183	return q;
aba5acdf	184	noexist:
f89bb021	185	q = calloc(1, sizeof(*q));
aba5acdf	186	if (q) {
aba5acdf SH	187	strncpy(q->id, str, 15);
	188	q->parse_fopt = parse_nofopt;
	189	q->print_fopt = print_nofopt;
	190	goto reg;
	191	}
	192	return q;
	193	}
	194
c2f3a0f9	195	static void usage(void)
aba5acdf	196	{
fec62c0e	197	fprintf(stderr,
8589eb4e MC	198	"Usage: tc [ OPTIONS ] OBJECT { COMMAND \| help }\n"
8589eb4e MC	199	" tc [-force] -batch filename\n"
afcd0699	200	"where OBJECT := { qdisc \| class \| filter \| chain \|\n"
8589eb4e	201	" action \| monitor \| exec }\n"
fec62c0e	202	" OPTIONS := { -V[ersion] \| -s[tatistics] \| -d[etails] \| -r[aw] \|\n"
8589eb4e	203	" -o[neline] \| -j[son] \| -p[retty] \| -c[olor]\n"
ca697cee	204	" -b[atch] [filename] \| -n[etns] name \| -N[umeric] \|\n"
8589eb4e	205	" -nm \| -nam[es] \| { -cf \| -conf } path }\n");
c2f3a0f9	206	}
c2f3a0f9	207
e991c04d	208	static int do_cmd(int argc, char **argv)
c2f3a0f9	209	{
	210	if (matches(*argv, "qdisc") == 0)
	211	return do_qdisc(argc-1, argv+1);
c2f3a0f9	212	if (matches(*argv, "class") == 0)
c2f3a0f9	213	return do_class(argc-1, argv+1);
c2f3a0f9	214	if (matches(*argv, "filter") == 0)
e991c04d	215	return do_filter(argc-1, argv+1);
afcd0699	216	if (matches(*argv, "chain") == 0)
e991c04d	217	return do_chain(argc-1, argv+1);
c2f3a0f9	218	if (matches(*argv, "actions") == 0)
e991c04d	219	return do_action(argc-1, argv+1);
5bec3484 JHS	220	if (matches(*argv, "monitor") == 0)
5bec3484 JHS	221	return do_tcmonitor(argc-1, argv+1);
4bd62446 DB	222	if (matches(*argv, "exec") == 0)
4bd62446 DB	223	return do_exec(argc-1, argv+1);
c2f3a0f9	224	if (matches(*argv, "help") == 0) {
	225	usage();
	226	return 0;
	227	}
ae665a52 SH	228
ae665a52 SH	229	fprintf(stderr, "Object \"%s\" is unknown, try \"tc help\".\n",
c2f3a0f9	230	*argv);
044ebf35	231	return -1;
aba5acdf SH	232	}
aba5acdf SH	233
c2f3a0f9	234	static int batch(const char *name)
aba5acdf	235	{
e991c04d	236	char *line = NULL;
c2f3a0f9	237	size_t len = 0;
08856f02	238	int ret = 0;
c2f3a0f9	239
a3aa47a5	240	batch_mode = 1;
dd3e9085	241	if (name && strcmp(name, "-") != 0) {
c2f3a0f9	242	if (freopen(name, "r", stdin) == NULL) {
fec62c0e SH	243	fprintf(stderr,
fec62c0e SH	244	"Cannot open file \"%s\" for reading: %s\n",
c2f3a0f9	245	name, strerror(errno));
044ebf35	246	return -1;
aba5acdf	247	}
c2f3a0f9	248	}
	249
	250	tc_core_init();
	251
	252	if (rtnl_open(&rth, 0) < 0) {
	253	fprintf(stderr, "Cannot open rtnetlink\n");
	254	return -1;
	255	}
	256
351efcde	257	cmdlineno = 0;
e991c04d SH	258	while (getcmdline(&line, &len, stdin) != -1) {
	259	char *largv[100];
	260	int largc;
aba5acdf	261
e991c04d SH	262	largc = makeargs(line, largv, 100);
e991c04d SH	263	if (largc == 0)
08856f02	264	continue; /* blank line */
aba5acdf	265
e991c04d SH	266	if (do_cmd(largc, largv)) {
	267	fprintf(stderr, "Command failed %s:%d\n",
	268	name, cmdlineno);
08856f02 SH	269	ret = 1;
	270	if (!force)
	271	break;
aba5acdf	272	}
4dd599fd	273	fflush(stdout);
e991c04d	274	}
7901660a	275
485d0c60	276	free(line);
c2f3a0f9	277	rtnl_close(&rth);
	278	return ret;
	279	}
7901660a	280
c2f3a0f9	281
	282	int main(int argc, char **argv)
	283	{
	284	int ret;
a3aa47a5	285	char *batch_file = NULL;
aba5acdf SH	286
	287	while (argc > 1) {
	288	if (argv[1][0] != '-')
	289	break;
	290	if (matches(argv[1], "-stats") == 0 \|\|
3ea2bf45	291	matches(argv[1], "-statistics") == 0) {
aba5acdf SH	292	++show_stats;
	293	} else if (matches(argv[1], "-details") == 0) {
	294	++show_details;
	295	} else if (matches(argv[1], "-raw") == 0) {
	296	++show_raw;
44dcfe82	297	} else if (matches(argv[1], "-pretty") == 0) {
54336567	298	++pretty;
d954b34a VK	299	} else if (matches(argv[1], "-graph") == 0) {
d954b34a VK	300	show_graph = 1;
aba5acdf SH	301	} else if (matches(argv[1], "-Version") == 0) {
aba5acdf SH	302	printf("tc utility, iproute2-ss%s\n", SNAPSHOT);
044ebf35	303	return 0;
3ea2bf45 SH	304	} else if (matches(argv[1], "-iec") == 0) {
3ea2bf45 SH	305	++use_iec;
aba5acdf SH	306	} else if (matches(argv[1], "-help") == 0) {
aba5acdf SH	307	usage();
c2f3a0f9	308	return 0;
08856f02 SH	309	} else if (matches(argv[1], "-force") == 0) {
08856f02 SH	310	++force;
4612d04d	311	} else if (matches(argv[1], "-batch") == 0) {
08856f02	312	argc--; argv++;
a3aa47a5 SH	313	if (argc <= 1)
	314	usage();
	315	batch_file = argv[1];
67e1d73b VK	316	} else if (matches(argv[1], "-netns") == 0) {
	317	NEXT_ARG();
	318	if (netns_switch(argv[1]))
	319	return -1;
ca697cee HL	320	} else if (matches(argv[1], "-Numeric") == 0) {
ca697cee HL	321	++numeric;
4612d04d VK	322	} else if (matches(argv[1], "-names") == 0 \|\|
	323	matches(argv[1], "-nm") == 0) {
	324	use_names = true;
	325	} else if (matches(argv[1], "-cf") == 0 \|\|
	326	matches(argv[1], "-conf") == 0) {
	327	NEXT_ARG();
	328	conf_file = argv[1];
ff1ab8ed	329	} else if (matches_color(argv[1], &color)) {
32a6fbe5 ED	330	} else if (matches(argv[1], "-timestamp") == 0) {
	331	timestamp++;
	332	} else if (matches(argv[1], "-tshort") == 0) {
	333	++timestamp;
	334	++timestamp_short;
c91d262f JP	335	} else if (matches(argv[1], "-json") == 0) {
c91d262f JP	336	++json;
6e8634eb RM	337	} else if (matches(argv[1], "-oneline") == 0) {
6e8634eb RM	338	++oneline;
aba5acdf	339	} else {
fec62c0e SH	340	fprintf(stderr,
	341	"Option \"%s\" is unknown, try \"tc -help\".\n",
	342	argv[1]);
044ebf35	343	return -1;
aba5acdf SH	344	}
	345	argc--; argv++;
	346	}
	347
6e8634eb RM	348	_SL_ = oneline ? "\\" : "\n";
6e8634eb RM	349
4d82962c	350	check_enable_color(color, json);
2d165c08	351
a3aa47a5 SH	352	if (batch_file)
a3aa47a5 SH	353	return batch(batch_file);
08856f02	354
c2f3a0f9	355	if (argc <= 1) {
	356	usage();
	357	return 0;
	358	}
	359
aba5acdf	360	tc_core_init();
7901660a SH	361	if (rtnl_open(&rth, 0) < 0) {
	362	fprintf(stderr, "Cannot open rtnetlink\n");
	363	exit(1);
	364	}
aba5acdf	365
4612d04d VK	366	if (use_names && cls_names_init(conf_file)) {
	367	ret = -1;
	368	goto Exit;
	369	}
	370
e991c04d	371	ret = do_cmd(argc-1, argv+1);
4612d04d	372	Exit:
7901660a	373	rtnl_close(&rth);
c2f3a0f9	374
4612d04d VK	375	if (use_names)
	376	cls_names_uninit();
	377
c2f3a0f9	378	return ret;
aba5acdf	379	}