[mirror_iproute2.git] / tc / tc_qdisc.c

/*
 * tc_qdisc.c		"tc qdisc".
 *
 *		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>
 *		J Hadi Salim: Extension to ingress
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <math.h>
#include <malloc.h>

#include "utils.h"
#include "tc_util.h"
#include "tc_common.h"

static int usage(void)
{
	fprintf(stderr, "Usage: tc qdisc [ add | del | replace | change | show ] dev STRING\n");
	fprintf(stderr, "       [ handle QHANDLE ] [ root | ingress | clsact | parent CLASSID ]\n");
	fprintf(stderr, "       [ estimator INTERVAL TIME_CONSTANT ]\n");
	fprintf(stderr, "       [ stab [ help | STAB_OPTIONS] ]\n");
	fprintf(stderr, "       [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n");
	fprintf(stderr, "\n");
	fprintf(stderr, "       tc qdisc show [ dev STRING ] [ ingress | clsact ]\n");
	fprintf(stderr, "Where:\n");
	fprintf(stderr, "QDISC_KIND := { [p|b]fifo | tbf | prio | cbq | red | etc. }\n");
	fprintf(stderr, "OPTIONS := ... try tc qdisc add <desired QDISC_KIND> help\n");
	fprintf(stderr, "STAB_OPTIONS := ... try tc qdisc add stab help\n");
	return -1;
}

static int tc_qdisc_modify(int cmd, unsigned flags, int argc, char **argv)
{
	struct qdisc_util *q = NULL;
	struct tc_estimator est;
	struct {
		struct tc_sizespec	szopts;
		__u16			*data;
	} stab;
	char  d[16];
	char  k[16];
	struct {
		struct nlmsghdr 	n;
		struct tcmsg 		t;
		char   			buf[TCA_BUF_MAX];
	} req;

	memset(&req, 0, sizeof(req));
	memset(&stab, 0, sizeof(stab));
	memset(&est, 0, sizeof(est));
	memset(&d, 0, sizeof(d));
	memset(&k, 0, sizeof(k));

	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
	req.n.nlmsg_flags = NLM_F_REQUEST|flags;
	req.n.nlmsg_type = cmd;
	req.t.tcm_family = AF_UNSPEC;

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			if (d[0])
				duparg("dev", *argv);
			strncpy(d, *argv, sizeof(d)-1);
		} else if (strcmp(*argv, "handle") == 0) {
			__u32 handle;
			if (req.t.tcm_handle)
				duparg("handle", *argv);
			NEXT_ARG();
			if (get_qdisc_handle(&handle, *argv))
				invarg("invalid qdisc ID", *argv);
			req.t.tcm_handle = handle;
		} else if (strcmp(*argv, "root") == 0) {
			if (req.t.tcm_parent) {
				fprintf(stderr, "Error: \"root\" is duplicate parent ID\n");
				return -1;
			}
			req.t.tcm_parent = TC_H_ROOT;
		} else if (strcmp(*argv, "clsact") == 0) {
			if (req.t.tcm_parent) {
				fprintf(stderr, "Error: \"clsact\" is a duplicate parent ID\n");
				return -1;
			}
			req.t.tcm_parent = TC_H_CLSACT;
			strncpy(k, "clsact", sizeof(k) - 1);
			q = get_qdisc_kind(k);
			req.t.tcm_handle = TC_H_MAKE(TC_H_CLSACT, 0);
			NEXT_ARG_FWD();
			break;
		} else if (strcmp(*argv, "ingress") == 0) {
			if (req.t.tcm_parent) {
				fprintf(stderr, "Error: \"ingress\" is a duplicate parent ID\n");
				return -1;
			}
			req.t.tcm_parent = TC_H_INGRESS;
			strncpy(k, "ingress", sizeof(k) - 1);
			q = get_qdisc_kind(k);
			req.t.tcm_handle = TC_H_MAKE(TC_H_INGRESS, 0);
			NEXT_ARG_FWD();
			break;
		} else if (strcmp(*argv, "parent") == 0) {
			__u32 handle;
			NEXT_ARG();
			if (req.t.tcm_parent)
				duparg("parent", *argv);
			if (get_tc_classid(&handle, *argv))
				invarg("invalid parent ID", *argv);
			req.t.tcm_parent = handle;
		} else if (matches(*argv, "estimator") == 0) {
			if (parse_estimator(&argc, &argv, &est))
				return -1;
		} else if (matches(*argv, "stab") == 0) {
			if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
				return -1;
			continue;
		} else if (matches(*argv, "help") == 0) {
			usage();
		} else {
			strncpy(k, *argv, sizeof(k)-1);

			q = get_qdisc_kind(k);
			argc--; argv++;
			break;
		}
		argc--; argv++;
	}

	if (k[0])
		addattr_l(&req.n, sizeof(req), TCA_KIND, k, strlen(k)+1);
	if (est.ewma_log)
		addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));

	if (q) {
		if (q->parse_qopt) {
			if (q->parse_qopt(q, argc, argv, &req.n))
				return 1;
		} else if (argc) {
			fprintf(stderr, "qdisc '%s' does not support option parsing\n", k);
			return -1;
		}
	} else {
		if (argc) {
			if (matches(*argv, "help") == 0)
				usage();

			fprintf(stderr, "Garbage instead of arguments \"%s ...\". Try \"tc qdisc help\".\n", *argv);
			return -1;
		}
	}

	if (check_size_table_opts(&stab.szopts)) {
		struct rtattr *tail;

		if (tc_calc_size_table(&stab.szopts, &stab.data) < 0) {
			fprintf(stderr, "failed to calculate size table.\n");
			return -1;
		}

		tail = NLMSG_TAIL(&req.n);
		addattr_l(&req.n, sizeof(req), TCA_STAB, NULL, 0);
		addattr_l(&req.n, sizeof(req), TCA_STAB_BASE, &stab.szopts,
			  sizeof(stab.szopts));
		if (stab.data)
			addattr_l(&req.n, sizeof(req), TCA_STAB_DATA, stab.data,
				  stab.szopts.tsize * sizeof(__u16));
		tail->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail;
		if (stab.data)
			free(stab.data);
	}

	if (d[0])  {
		int idx;

		ll_init_map(&rth);

		if ((idx = ll_name_to_index(d)) == 0) {
			fprintf(stderr, "Cannot find device \"%s\"\n", d);
			return 1;
		}
		req.t.tcm_ifindex = idx;
	}

	if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
		return 2;

	return 0;
}

static int filter_ifindex;

int print_qdisc(const struct sockaddr_nl *who,
		       struct nlmsghdr *n,
		       void *arg)
{
	FILE *fp = (FILE*)arg;
	struct tcmsg *t = NLMSG_DATA(n);
	int len = n->nlmsg_len;
	struct rtattr * tb[TCA_MAX+1];
	struct qdisc_util *q;
	char abuf[256];

	if (n->nlmsg_type != RTM_NEWQDISC && n->nlmsg_type != RTM_DELQDISC) {
		fprintf(stderr, "Not a qdisc\n");
		return 0;
	}
	len -= NLMSG_LENGTH(sizeof(*t));
	if (len < 0) {
		fprintf(stderr, "Wrong len %d\n", len);
		return -1;
	}

	if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
		return 0;

	memset(tb, 0, sizeof(tb));
	parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);

	if (tb[TCA_KIND] == NULL) {
		fprintf(stderr, "print_qdisc: NULL kind\n");
		return -1;
	}

	if (n->nlmsg_type == RTM_DELQDISC)
		fprintf(fp, "deleted ");

	fprintf(fp, "qdisc %s %x: ", rta_getattr_str(tb[TCA_KIND]), t->tcm_handle>>16);
	if (filter_ifindex == 0)
		fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
	if (t->tcm_parent == TC_H_ROOT)
		fprintf(fp, "root ");
	else if (t->tcm_parent) {
		print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
		fprintf(fp, "parent %s ", abuf);
	}
	if (t->tcm_info != 1) {
		fprintf(fp, "refcnt %d ", t->tcm_info);
	}
	/* pfifo_fast is generic enough to warrant the hardcoding --JHS */

	if (0 == strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])))
		q = get_qdisc_kind("prio");
	else
		q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));

	if (tb[TCA_OPTIONS]) {
		if (q)
			q->print_qopt(q, fp, tb[TCA_OPTIONS]);
		else
			fprintf(fp, "[cannot parse qdisc parameters]");
	}
	fprintf(fp, "\n");
	if (show_details && tb[TCA_STAB]) {
		print_size_table(fp, " ", tb[TCA_STAB]);
		fprintf(fp, "\n");
	}
	if (show_stats) {
		struct rtattr *xstats = NULL;

		if (tb[TCA_STATS] || tb[TCA_STATS2] || tb[TCA_XSTATS]) {
			print_tcstats_attr(fp, tb, " ", &xstats);
			fprintf(fp, "\n");
		}

		if (q && xstats && q->print_xstats) {
			q->print_xstats(q, fp, xstats);
			fprintf(fp, "\n");
		}
	}
	fflush(fp);
	return 0;
}

static int tc_qdisc_list(int argc, char **argv)
{
	struct tcmsg t;
	char d[16];

	memset(&t, 0, sizeof(t));
	t.tcm_family = AF_UNSPEC;
	memset(&d, 0, sizeof(d));

	while (argc > 0) {
		if (strcmp(*argv, "dev") == 0) {
			NEXT_ARG();
			strncpy(d, *argv, sizeof(d)-1);
                } else if (strcmp(*argv, "ingress") == 0 ||
			   strcmp(*argv, "clsact") == 0) {
                             if (t.tcm_parent) {
                                     fprintf(stderr, "Duplicate parent ID\n");
                                     usage();
                             }
                             t.tcm_parent = TC_H_INGRESS;
		} else if (matches(*argv, "help") == 0) {
			usage();
		} else {
			fprintf(stderr, "What is \"%s\"? Try \"tc qdisc help\".\n", *argv);
			return -1;
		}

		argc--; argv++;
	}

	ll_init_map(&rth);

	if (d[0]) {
		if ((t.tcm_ifindex = ll_name_to_index(d)) == 0) {
			fprintf(stderr, "Cannot find device \"%s\"\n", d);
			return 1;
		}
		filter_ifindex = t.tcm_ifindex;
	}

	if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
		perror("Cannot send dump request");
		return 1;
	}

	if (rtnl_dump_filter(&rth, print_qdisc, stdout) < 0) {
		fprintf(stderr, "Dump terminated\n");
		return 1;
	}

	return 0;
}

int do_qdisc(int argc, char **argv)
{
	if (argc < 1)
		return tc_qdisc_list(0, NULL);
	if (matches(*argv, "add") == 0)
		return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_EXCL|NLM_F_CREATE, argc-1, argv+1);
	if (matches(*argv, "change") == 0)
		return tc_qdisc_modify(RTM_NEWQDISC, 0, argc-1, argv+1);
	if (matches(*argv, "replace") == 0)
		return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
	if (matches(*argv, "link") == 0)
		return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_REPLACE, argc-1, argv+1);
	if (matches(*argv, "delete") == 0)
		return tc_qdisc_modify(RTM_DELQDISC, 0,  argc-1, argv+1);
#if 0
	if (matches(*argv, "get") == 0)
		return tc_qdisc_get(RTM_GETQDISC, 0,  argc-1, argv+1);
#endif
	if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
	    || matches(*argv, "lst") == 0)
		return tc_qdisc_list(argc-1, argv+1);
	if (matches(*argv, "help") == 0) {
		usage();
		return 0;
        }
	fprintf(stderr, "Command \"%s\" is unknown, try \"tc qdisc help\".\n", *argv);
	return -1;
}
Commit	Line	Data
aba5acdf SH	1	/*
	2	* tc_qdisc.c "tc qdisc".
	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	* J Hadi Salim: Extension to ingress
	11	*/
	12
	13	#include <stdio.h>
	14	#include <stdlib.h>
	15	#include <unistd.h>
	16	#include <syslog.h>
	17	#include <fcntl.h>
	18	#include <sys/socket.h>
	19	#include <netinet/in.h>
	20	#include <arpa/inet.h>
	21	#include <string.h>
	22	#include <math.h>
839c8456	23	#include <malloc.h>
aba5acdf SH	24
	25	#include "utils.h"
	26	#include "tc_util.h"
	27	#include "tc_common.h"
	28
11656f1b	29	static int usage(void)
aba5acdf	30	{
e5d179d8	31	fprintf(stderr, "Usage: tc qdisc [ add \| del \| replace \| change \| show ] dev STRING\n");
8f9afdd5	32	fprintf(stderr, " [ handle QHANDLE ] [ root \| ingress \| clsact \| parent CLASSID ]\n");
aba5acdf	33	fprintf(stderr, " [ estimator INTERVAL TIME_CONSTANT ]\n");
839c8456	34	fprintf(stderr, " [ stab [ help \| STAB_OPTIONS] ]\n");
aba5acdf SH	35	fprintf(stderr, " [ [ QDISC_KIND ] [ help \| OPTIONS ] ]\n");
aba5acdf SH	36	fprintf(stderr, "\n");
8f9afdd5	37	fprintf(stderr, " tc qdisc show [ dev STRING ] [ ingress \| clsact ]\n");
aba5acdf SH	38	fprintf(stderr, "Where:\n");
	39	fprintf(stderr, "QDISC_KIND := { [p\|b]fifo \| tbf \| prio \| cbq \| red \| etc. }\n");
	40	fprintf(stderr, "OPTIONS := ... try tc qdisc add <desired QDISC_KIND> help\n");
839c8456	41	fprintf(stderr, "STAB_OPTIONS := ... try tc qdisc add stab help\n");
11656f1b	42	return -1;
aba5acdf SH	43	}
aba5acdf SH	44
d1f28cf1	45	static int tc_qdisc_modify(int cmd, unsigned flags, int argc, char **argv)
aba5acdf	46	{
aba5acdf SH	47	struct qdisc_util *q = NULL;
aba5acdf SH	48	struct tc_estimator est;
839c8456 JK	49	struct {
	50	struct tc_sizespec szopts;
	51	__u16 *data;
	52	} stab;
aba5acdf SH	53	char d[16];
aba5acdf SH	54	char k[16];
f307c24e SH	55	struct {
	56	struct nlmsghdr n;
	57	struct tcmsg t;
	58	char buf[TCA_BUF_MAX];
	59	} req;
aba5acdf SH	60
aba5acdf SH	61	memset(&req, 0, sizeof(req));
839c8456	62	memset(&stab, 0, sizeof(stab));
aba5acdf SH	63	memset(&est, 0, sizeof(est));
	64	memset(&d, 0, sizeof(d));
	65	memset(&k, 0, sizeof(k));
	66
	67	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
	68	req.n.nlmsg_flags = NLM_F_REQUEST\|flags;
	69	req.n.nlmsg_type = cmd;
	70	req.t.tcm_family = AF_UNSPEC;
	71
	72	while (argc > 0) {
	73	if (strcmp(*argv, "dev") == 0) {
	74	NEXT_ARG();
	75	if (d[0])
	76	duparg("dev", *argv);
	77	strncpy(d, *argv, sizeof(d)-1);
	78	} else if (strcmp(*argv, "handle") == 0) {
	79	__u32 handle;
	80	if (req.t.tcm_handle)
	81	duparg("handle", *argv);
	82	NEXT_ARG();
	83	if (get_qdisc_handle(&handle, *argv))
f1675d61	84	invarg("invalid qdisc ID", *argv);
aba5acdf SH	85	req.t.tcm_handle = handle;
	86	} else if (strcmp(*argv, "root") == 0) {
	87	if (req.t.tcm_parent) {
	88	fprintf(stderr, "Error: \"root\" is duplicate parent ID\n");
11656f1b	89	return -1;
aba5acdf SH	90	}
aba5acdf SH	91	req.t.tcm_parent = TC_H_ROOT;
8f9afdd5 DB	92	} else if (strcmp(*argv, "clsact") == 0) {
	93	if (req.t.tcm_parent) {
	94	fprintf(stderr, "Error: \"clsact\" is a duplicate parent ID\n");
	95	return -1;
	96	}
	97	req.t.tcm_parent = TC_H_CLSACT;
	98	strncpy(k, "clsact", sizeof(k) - 1);
	99	q = get_qdisc_kind(k);
	100	req.t.tcm_handle = TC_H_MAKE(TC_H_CLSACT, 0);
	101	NEXT_ARG_FWD();
	102	break;
aba5acdf SH	103	} else if (strcmp(*argv, "ingress") == 0) {
	104	if (req.t.tcm_parent) {
	105	fprintf(stderr, "Error: \"ingress\" is a duplicate parent ID\n");
11656f1b	106	return -1;
aba5acdf SH	107	}
aba5acdf SH	108	req.t.tcm_parent = TC_H_INGRESS;
0d45c4b4	109	strncpy(k, "ingress", sizeof(k) - 1);
aba5acdf	110	q = get_qdisc_kind(k);
0d45c4b4 DB	111	req.t.tcm_handle = TC_H_MAKE(TC_H_INGRESS, 0);
0d45c4b4 DB	112	NEXT_ARG_FWD();
aba5acdf	113	break;
aba5acdf SH	114	} else if (strcmp(*argv, "parent") == 0) {
	115	__u32 handle;
	116	NEXT_ARG();
	117	if (req.t.tcm_parent)
	118	duparg("parent", *argv);
	119	if (get_tc_classid(&handle, *argv))
f1675d61	120	invarg("invalid parent ID", *argv);
aba5acdf SH	121	req.t.tcm_parent = handle;
	122	} else if (matches(*argv, "estimator") == 0) {
	123	if (parse_estimator(&argc, &argv, &est))
	124	return -1;
839c8456 JK	125	} else if (matches(*argv, "stab") == 0) {
	126	if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
	127	return -1;
	128	continue;
aba5acdf SH	129	} else if (matches(*argv, "help") == 0) {
	130	usage();
	131	} else {
	132	strncpy(k, *argv, sizeof(k)-1);
	133
	134	q = get_qdisc_kind(k);
	135	argc--; argv++;
	136	break;
	137	}
	138	argc--; argv++;
	139	}
	140
	141	if (k[0])
	142	addattr_l(&req.n, sizeof(req), TCA_KIND, k, strlen(k)+1);
	143	if (est.ewma_log)
	144	addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
	145
0a502b21 SH	146	if (q) {
0a502b21 SH	147	if (q->parse_qopt) {
e9e78b0d SH	148	if (q->parse_qopt(q, argc, argv, &req.n))
e9e78b0d SH	149	return 1;
0a502b21 SH	150	} else if (argc) {
	151	fprintf(stderr, "qdisc '%s' does not support option parsing\n", k);
	152	return -1;
	153	}
	154	} else {
	155	if (argc) {
aba5acdf SH	156	if (matches(*argv, "help") == 0)
	157	usage();
	158
	159	fprintf(stderr, "Garbage instead of arguments \"%s ...\". Try \"tc qdisc help\".\n", *argv);
11656f1b	160	return -1;
aba5acdf SH	161	}
	162	}
	163
839c8456 JK	164	if (check_size_table_opts(&stab.szopts)) {
	165	struct rtattr *tail;
	166
	167	if (tc_calc_size_table(&stab.szopts, &stab.data) < 0) {
	168	fprintf(stderr, "failed to calculate size table.\n");
	169	return -1;
	170	}
	171
	172	tail = NLMSG_TAIL(&req.n);
	173	addattr_l(&req.n, sizeof(req), TCA_STAB, NULL, 0);
	174	addattr_l(&req.n, sizeof(req), TCA_STAB_BASE, &stab.szopts,
	175	sizeof(stab.szopts));
	176	if (stab.data)
	177	addattr_l(&req.n, sizeof(req), TCA_STAB_DATA, stab.data,
	178	stab.szopts.tsize * sizeof(__u16));
	179	tail->rta_len = (void )NLMSG_TAIL(&req.n) - (void )tail;
	180	if (stab.data)
	181	free(stab.data);
	182	}
	183
aba5acdf SH	184	if (d[0]) {
	185	int idx;
	186
3d0b7439	187	ll_init_map(&rth);
aba5acdf SH	188
	189	if ((idx = ll_name_to_index(d)) == 0) {
	190	fprintf(stderr, "Cannot find device \"%s\"\n", d);
11656f1b	191	return 1;
aba5acdf SH	192	}
	193	req.t.tcm_ifindex = idx;
	194	}
	195
c079e121	196	if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
11656f1b	197	return 2;
aba5acdf	198
aba5acdf SH	199	return 0;
	200	}
	201
aba5acdf SH	202	static int filter_ifindex;
aba5acdf SH	203
ae665a52 SH	204	int print_qdisc(const struct sockaddr_nl *who,
ae665a52 SH	205	struct nlmsghdr *n,
649b0755	206	void *arg)
aba5acdf SH	207	{
	208	FILE fp = (FILE)arg;
	209	struct tcmsg *t = NLMSG_DATA(n);
	210	int len = n->nlmsg_len;
	211	struct rtattr * tb[TCA_MAX+1];
	212	struct qdisc_util *q;
	213	char abuf[256];
	214
	215	if (n->nlmsg_type != RTM_NEWQDISC && n->nlmsg_type != RTM_DELQDISC) {
	216	fprintf(stderr, "Not a qdisc\n");
	217	return 0;
	218	}
	219	len -= NLMSG_LENGTH(sizeof(*t));
	220	if (len < 0) {
	221	fprintf(stderr, "Wrong len %d\n", len);
	222	return -1;
	223	}
	224
	225	if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
	226	return 0;
	227
	228	memset(tb, 0, sizeof(tb));
	229	parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);
	230
	231	if (tb[TCA_KIND] == NULL) {
2373fde9	232	fprintf(stderr, "print_qdisc: NULL kind\n");
aba5acdf SH	233	return -1;
	234	}
	235
	236	if (n->nlmsg_type == RTM_DELQDISC)
	237	fprintf(fp, "deleted ");
	238
ff24746c	239	fprintf(fp, "qdisc %s %x: ", rta_getattr_str(tb[TCA_KIND]), t->tcm_handle>>16);
aba5acdf SH	240	if (filter_ifindex == 0)
	241	fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
	242	if (t->tcm_parent == TC_H_ROOT)
	243	fprintf(fp, "root ");
	244	else if (t->tcm_parent) {
	245	print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
	246	fprintf(fp, "parent %s ", abuf);
	247	}
	248	if (t->tcm_info != 1) {
	249	fprintf(fp, "refcnt %d ", t->tcm_info);
	250	}
ae665a52 SH	251	/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
ae665a52 SH	252
2373fde9 SH	253	if (0 == strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])))
	254	q = get_qdisc_kind("prio");
	255	else
	256	q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));
ae665a52	257
aba5acdf SH	258	if (tb[TCA_OPTIONS]) {
	259	if (q)
	260	q->print_qopt(q, fp, tb[TCA_OPTIONS]);
	261	else
	262	fprintf(fp, "[cannot parse qdisc parameters]");
	263	}
	264	fprintf(fp, "\n");
839c8456 JK	265	if (show_details && tb[TCA_STAB]) {
	266	print_size_table(fp, " ", tb[TCA_STAB]);
	267	fprintf(fp, "\n");
	268	}
aba5acdf	269	if (show_stats) {
e5879dc6	270	struct rtattr *xstats = NULL;
	271
	272	if (tb[TCA_STATS] \|\| tb[TCA_STATS2] \|\| tb[TCA_XSTATS]) {
	273	print_tcstats_attr(fp, tb, " ", &xstats);
649b0755	274	fprintf(fp, "\n");
aba5acdf	275	}
649b0755	276
e5879dc6	277	if (q && xstats && q->print_xstats) {
e5879dc6	278	q->print_xstats(q, fp, xstats);
aba5acdf SH	279	fprintf(fp, "\n");
	280	}
	281	}
	282	fflush(fp);
	283	return 0;
	284	}
	285
d1f28cf1	286	static int tc_qdisc_list(int argc, char **argv)
aba5acdf SH	287	{
aba5acdf SH	288	struct tcmsg t;
aba5acdf SH	289	char d[16];
	290
	291	memset(&t, 0, sizeof(t));
	292	t.tcm_family = AF_UNSPEC;
	293	memset(&d, 0, sizeof(d));
ae665a52	294
aba5acdf SH	295	while (argc > 0) {
	296	if (strcmp(*argv, "dev") == 0) {
	297	NEXT_ARG();
	298	strncpy(d, *argv, sizeof(d)-1);
8f9afdd5 DB	299	} else if (strcmp(*argv, "ingress") == 0 \|\|
8f9afdd5 DB	300	strcmp(*argv, "clsact") == 0) {
aba5acdf SH	301	if (t.tcm_parent) {
	302	fprintf(stderr, "Duplicate parent ID\n");
	303	usage();
	304	}
	305	t.tcm_parent = TC_H_INGRESS;
aba5acdf SH	306	} else if (matches(*argv, "help") == 0) {
	307	usage();
	308	} else {
	309	fprintf(stderr, "What is \"%s\"? Try \"tc qdisc help\".\n", *argv);
	310	return -1;
	311	}
	312
	313	argc--; argv++;
	314	}
	315
3d0b7439	316	ll_init_map(&rth);
aba5acdf SH	317
	318	if (d[0]) {
	319	if ((t.tcm_ifindex = ll_name_to_index(d)) == 0) {
	320	fprintf(stderr, "Cannot find device \"%s\"\n", d);
11656f1b	321	return 1;
aba5acdf SH	322	}
	323	filter_ifindex = t.tcm_ifindex;
	324	}
	325
3d0b7439	326	if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
aba5acdf	327	perror("Cannot send dump request");
11656f1b	328	return 1;
aba5acdf SH	329	}
aba5acdf SH	330
3d0b7439	331	if (rtnl_dump_filter(&rth, print_qdisc, stdout) < 0) {
aba5acdf	332	fprintf(stderr, "Dump terminated\n");
11656f1b	333	return 1;
aba5acdf SH	334	}
aba5acdf SH	335
aba5acdf SH	336	return 0;
	337	}
	338
	339	int do_qdisc(int argc, char **argv)
	340	{
	341	if (argc < 1)
	342	return tc_qdisc_list(0, NULL);
	343	if (matches(*argv, "add") == 0)
	344	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_EXCL\|NLM_F_CREATE, argc-1, argv+1);
	345	if (matches(*argv, "change") == 0)
	346	return tc_qdisc_modify(RTM_NEWQDISC, 0, argc-1, argv+1);
	347	if (matches(*argv, "replace") == 0)
	348	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
	349	if (matches(*argv, "link") == 0)
	350	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_REPLACE, argc-1, argv+1);
	351	if (matches(*argv, "delete") == 0)
	352	return tc_qdisc_modify(RTM_DELQDISC, 0, argc-1, argv+1);
	353	#if 0
	354	if (matches(*argv, "get") == 0)
	355	return tc_qdisc_get(RTM_GETQDISC, 0, argc-1, argv+1);
	356	#endif
	357	if (matches(argv, "list") == 0 \|\| matches(argv, "show") == 0
	358	\|\| matches(*argv, "lst") == 0)
	359	return tc_qdisc_list(argc-1, argv+1);
e5d179d8	360	if (matches(*argv, "help") == 0) {
aba5acdf	361	usage();
e5d179d8 HT	362	return 0;
e5d179d8 HT	363	}
aba5acdf SH	364	fprintf(stderr, "Command \"%s\" is unknown, try \"tc qdisc help\".\n", *argv);
	365	return -1;
	366	}