[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 ] [ invisible ]\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 int 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 = {
		.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
		.n.nlmsg_flags = NLM_F_REQUEST | flags,
		.n.nlmsg_type = cmd,
		.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);

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

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

	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 ");

	if (n->nlmsg_type == RTM_NEWQDISC &&
			(n->nlmsg_flags & NLM_F_CREATE) &&
			(n->nlmsg_flags & NLM_F_REPLACE))
		fprintf(fp, "replaced ");

	if (n->nlmsg_type == RTM_NEWQDISC &&
			(n->nlmsg_flags & NLM_F_CREATE) &&
			(n->nlmsg_flags & NLM_F_EXCL))
		fprintf(fp, "added ");

	if (show_raw)
		fprintf(fp, "qdisc %s %x:[%08x]  ",
			rta_getattr_str(tb[TCA_KIND]),
			t->tcm_handle >> 16, t->tcm_handle);
	else
		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 (strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])) == 0)
		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 = { .tcm_family = AF_UNSPEC };
	char d[16] = {};
	bool dump_invisible = false;

	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 if (strcmp(*argv, "invisible") == 0) {
			dump_invisible = true;
		} else {
			fprintf(stderr, "What is \"%s\"? Try \"tc qdisc help\".\n", *argv);
			return -1;
		}

		argc--; argv++;
	}

	ll_init_map(&rth);

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

	if (dump_invisible) {
		struct {
			struct nlmsghdr n;
			struct tcmsg t;
			char buf[256];
		} req = {
			.n.nlmsg_type = RTM_GETQDISC,
			.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
		};

		req.t.tcm_family = AF_UNSPEC;

		addattr(&req.n, 256, TCA_DUMP_INVISIBLE);
		if (rtnl_dump_request_n(&rth, &req.n) < 0) {
			perror("Cannot send dump request");
			return 1;
		}

	} else 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");
7c581a12	37	fprintf(stderr, " tc qdisc show [ dev STRING ] [ ingress \| clsact ] [ invisible ]\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
32a121cb	45	static int tc_qdisc_modify(int cmd, unsigned int flags, int argc, char **argv)
aba5acdf	46	{
aba5acdf	47	struct qdisc_util *q = NULL;
9579afb2	48	struct tc_estimator est = {};
839c8456 JK	49	struct {
	50	struct tc_sizespec szopts;
	51	__u16 *data;
d17b136f PS	52	} stab = {};
	53	char d[16] = {};
	54	char k[16] = {};
f307c24e	55	struct {
32a121cb SH	56	struct nlmsghdr n;
	57	struct tcmsg t;
	58	char buf[TCA_BUF_MAX];
d17b136f PS	59	} req = {
	60	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
	61	.n.nlmsg_flags = NLM_F_REQUEST \| flags,
	62	.n.nlmsg_type = cmd,
	63	.t.tcm_family = AF_UNSPEC,
	64	};
aba5acdf SH	65
	66	while (argc > 0) {
	67	if (strcmp(*argv, "dev") == 0) {
	68	NEXT_ARG();
	69	if (d[0])
	70	duparg("dev", *argv);
	71	strncpy(d, *argv, sizeof(d)-1);
	72	} else if (strcmp(*argv, "handle") == 0) {
	73	__u32 handle;
32a121cb	74
aba5acdf SH	75	if (req.t.tcm_handle)
	76	duparg("handle", *argv);
	77	NEXT_ARG();
	78	if (get_qdisc_handle(&handle, *argv))
f1675d61	79	invarg("invalid qdisc ID", *argv);
aba5acdf SH	80	req.t.tcm_handle = handle;
	81	} else if (strcmp(*argv, "root") == 0) {
	82	if (req.t.tcm_parent) {
	83	fprintf(stderr, "Error: \"root\" is duplicate parent ID\n");
11656f1b	84	return -1;
aba5acdf SH	85	}
aba5acdf SH	86	req.t.tcm_parent = TC_H_ROOT;
8f9afdd5 DB	87	} else if (strcmp(*argv, "clsact") == 0) {
	88	if (req.t.tcm_parent) {
	89	fprintf(stderr, "Error: \"clsact\" is a duplicate parent ID\n");
	90	return -1;
	91	}
	92	req.t.tcm_parent = TC_H_CLSACT;
	93	strncpy(k, "clsact", sizeof(k) - 1);
	94	q = get_qdisc_kind(k);
	95	req.t.tcm_handle = TC_H_MAKE(TC_H_CLSACT, 0);
	96	NEXT_ARG_FWD();
	97	break;
aba5acdf SH	98	} else if (strcmp(*argv, "ingress") == 0) {
	99	if (req.t.tcm_parent) {
	100	fprintf(stderr, "Error: \"ingress\" is a duplicate parent ID\n");
11656f1b	101	return -1;
aba5acdf SH	102	}
aba5acdf SH	103	req.t.tcm_parent = TC_H_INGRESS;
0d45c4b4	104	strncpy(k, "ingress", sizeof(k) - 1);
aba5acdf	105	q = get_qdisc_kind(k);
0d45c4b4 DB	106	req.t.tcm_handle = TC_H_MAKE(TC_H_INGRESS, 0);
0d45c4b4 DB	107	NEXT_ARG_FWD();
aba5acdf	108	break;
aba5acdf SH	109	} else if (strcmp(*argv, "parent") == 0) {
aba5acdf SH	110	__u32 handle;
32a121cb	111
aba5acdf SH	112	NEXT_ARG();
	113	if (req.t.tcm_parent)
	114	duparg("parent", *argv);
	115	if (get_tc_classid(&handle, *argv))
f1675d61	116	invarg("invalid parent ID", *argv);
aba5acdf SH	117	req.t.tcm_parent = handle;
	118	} else if (matches(*argv, "estimator") == 0) {
	119	if (parse_estimator(&argc, &argv, &est))
	120	return -1;
839c8456 JK	121	} else if (matches(*argv, "stab") == 0) {
	122	if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
	123	return -1;
	124	continue;
aba5acdf SH	125	} else if (matches(*argv, "help") == 0) {
	126	usage();
	127	} else {
	128	strncpy(k, *argv, sizeof(k)-1);
	129
	130	q = get_qdisc_kind(k);
	131	argc--; argv++;
	132	break;
	133	}
	134	argc--; argv++;
	135	}
	136
	137	if (k[0])
	138	addattr_l(&req.n, sizeof(req), TCA_KIND, k, strlen(k)+1);
	139	if (est.ewma_log)
	140	addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
	141
0a502b21 SH	142	if (q) {
0a502b21 SH	143	if (q->parse_qopt) {
e9e78b0d SH	144	if (q->parse_qopt(q, argc, argv, &req.n))
e9e78b0d SH	145	return 1;
0a502b21 SH	146	} else if (argc) {
	147	fprintf(stderr, "qdisc '%s' does not support option parsing\n", k);
	148	return -1;
	149	}
	150	} else {
	151	if (argc) {
aba5acdf SH	152	if (matches(*argv, "help") == 0)
	153	usage();
	154
	155	fprintf(stderr, "Garbage instead of arguments \"%s ...\". Try \"tc qdisc help\".\n", *argv);
11656f1b	156	return -1;
aba5acdf SH	157	}
	158	}
	159
839c8456 JK	160	if (check_size_table_opts(&stab.szopts)) {
	161	struct rtattr *tail;
	162
	163	if (tc_calc_size_table(&stab.szopts, &stab.data) < 0) {
	164	fprintf(stderr, "failed to calculate size table.\n");
	165	return -1;
	166	}
	167
	168	tail = NLMSG_TAIL(&req.n);
	169	addattr_l(&req.n, sizeof(req), TCA_STAB, NULL, 0);
	170	addattr_l(&req.n, sizeof(req), TCA_STAB_BASE, &stab.szopts,
	171	sizeof(stab.szopts));
	172	if (stab.data)
	173	addattr_l(&req.n, sizeof(req), TCA_STAB_DATA, stab.data,
	174	stab.szopts.tsize * sizeof(__u16));
	175	tail->rta_len = (void )NLMSG_TAIL(&req.n) - (void )tail;
	176	if (stab.data)
	177	free(stab.data);
	178	}
	179
aba5acdf SH	180	if (d[0]) {
	181	int idx;
	182
3d0b7439	183	ll_init_map(&rth);
aba5acdf	184
b932e6f3 SH	185	idx = ll_name_to_index(d);
b932e6f3 SH	186	if (idx == 0) {
aba5acdf	187	fprintf(stderr, "Cannot find device \"%s\"\n", d);
11656f1b	188	return 1;
aba5acdf SH	189	}
	190	req.t.tcm_ifindex = idx;
	191	}
	192
86bf43c7	193	if (rtnl_talk(&rth, &req.n, NULL) < 0)
11656f1b	194	return 2;
aba5acdf	195
aba5acdf SH	196	return 0;
	197	}
	198
aba5acdf SH	199	static int filter_ifindex;
aba5acdf SH	200
ae665a52	201	int print_qdisc(const struct sockaddr_nl *who,
b932e6f3	202	struct nlmsghdr n, void arg)
aba5acdf	203	{
32a121cb	204	FILE fp = (FILE )arg;
aba5acdf SH	205	struct tcmsg *t = NLMSG_DATA(n);
aba5acdf SH	206	int len = n->nlmsg_len;
32a121cb	207	struct rtattr *tb[TCA_MAX+1];
aba5acdf SH	208	struct qdisc_util *q;
	209	char abuf[256];
	210
	211	if (n->nlmsg_type != RTM_NEWQDISC && n->nlmsg_type != RTM_DELQDISC) {
	212	fprintf(stderr, "Not a qdisc\n");
	213	return 0;
	214	}
	215	len -= NLMSG_LENGTH(sizeof(*t));
	216	if (len < 0) {
	217	fprintf(stderr, "Wrong len %d\n", len);
	218	return -1;
	219	}
	220
	221	if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
	222	return 0;
	223
aba5acdf SH	224	parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);
	225
	226	if (tb[TCA_KIND] == NULL) {
2373fde9	227	fprintf(stderr, "print_qdisc: NULL kind\n");
aba5acdf SH	228	return -1;
	229	}
	230
	231	if (n->nlmsg_type == RTM_DELQDISC)
	232	fprintf(fp, "deleted ");
	233
274b63ae RM	234	if (n->nlmsg_type == RTM_NEWQDISC &&
	235	(n->nlmsg_flags & NLM_F_CREATE) &&
	236	(n->nlmsg_flags & NLM_F_REPLACE))
	237	fprintf(fp, "replaced ");
	238
	239	if (n->nlmsg_type == RTM_NEWQDISC &&
	240	(n->nlmsg_flags & NLM_F_CREATE) &&
	241	(n->nlmsg_flags & NLM_F_EXCL))
	242	fprintf(fp, "added ");
	243
d42e1444 RM	244	if (show_raw)
	245	fprintf(fp, "qdisc %s %x:[%08x] ",
	246	rta_getattr_str(tb[TCA_KIND]),
	247	t->tcm_handle >> 16, t->tcm_handle);
	248	else
	249	fprintf(fp, "qdisc %s %x: ", rta_getattr_str(tb[TCA_KIND]),
	250	t->tcm_handle >> 16);
	251
aba5acdf SH	252	if (filter_ifindex == 0)
aba5acdf SH	253	fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
b932e6f3	254
aba5acdf SH	255	if (t->tcm_parent == TC_H_ROOT)
	256	fprintf(fp, "root ");
	257	else if (t->tcm_parent) {
	258	print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
	259	fprintf(fp, "parent %s ", abuf);
	260	}
b932e6f3 SH	261
b932e6f3 SH	262	if (t->tcm_info != 1)
aba5acdf	263	fprintf(fp, "refcnt %d ", t->tcm_info);
ae665a52	264
b932e6f3 SH	265	/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
b932e6f3 SH	266	if (strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])) == 0)
2373fde9 SH	267	q = get_qdisc_kind("prio");
	268	else
	269	q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));
ae665a52	270
aba5acdf SH	271	if (tb[TCA_OPTIONS]) {
	272	if (q)
	273	q->print_qopt(q, fp, tb[TCA_OPTIONS]);
	274	else
	275	fprintf(fp, "[cannot parse qdisc parameters]");
	276	}
	277	fprintf(fp, "\n");
b932e6f3	278
839c8456 JK	279	if (show_details && tb[TCA_STAB]) {
	280	print_size_table(fp, " ", tb[TCA_STAB]);
	281	fprintf(fp, "\n");
	282	}
b932e6f3	283
aba5acdf	284	if (show_stats) {
e5879dc6	285	struct rtattr *xstats = NULL;
	286
	287	if (tb[TCA_STATS] \|\| tb[TCA_STATS2] \|\| tb[TCA_XSTATS]) {
	288	print_tcstats_attr(fp, tb, " ", &xstats);
649b0755	289	fprintf(fp, "\n");
aba5acdf	290	}
649b0755	291
e5879dc6	292	if (q && xstats && q->print_xstats) {
e5879dc6	293	q->print_xstats(q, fp, xstats);
aba5acdf SH	294	fprintf(fp, "\n");
	295	}
	296	}
	297	fflush(fp);
	298	return 0;
	299	}
	300
d1f28cf1	301	static int tc_qdisc_list(int argc, char **argv)
aba5acdf	302	{
d17b136f PS	303	struct tcmsg t = { .tcm_family = AF_UNSPEC };
d17b136f PS	304	char d[16] = {};
7c581a12	305	bool dump_invisible = false;
ae665a52	306
aba5acdf SH	307	while (argc > 0) {
	308	if (strcmp(*argv, "dev") == 0) {
	309	NEXT_ARG();
	310	strncpy(d, *argv, sizeof(d)-1);
32a121cb	311	} else if (strcmp(*argv, "ingress") == 0 \|\|
8f9afdd5	312	strcmp(*argv, "clsact") == 0) {
b932e6f3 SH	313	if (t.tcm_parent) {
	314	fprintf(stderr, "Duplicate parent ID\n");
	315	usage();
	316	}
	317	t.tcm_parent = TC_H_INGRESS;
aba5acdf SH	318	} else if (matches(*argv, "help") == 0) {
aba5acdf SH	319	usage();
7c581a12 JK	320	} else if (strcmp(*argv, "invisible") == 0) {
7c581a12 JK	321	dump_invisible = true;
aba5acdf SH	322	} else {
	323	fprintf(stderr, "What is \"%s\"? Try \"tc qdisc help\".\n", *argv);
	324	return -1;
	325	}
	326
	327	argc--; argv++;
	328	}
	329
3d0b7439	330	ll_init_map(&rth);
aba5acdf SH	331
aba5acdf SH	332	if (d[0]) {
b932e6f3 SH	333	t.tcm_ifindex = ll_name_to_index(d);
b932e6f3 SH	334	if (t.tcm_ifindex == 0) {
aba5acdf	335	fprintf(stderr, "Cannot find device \"%s\"\n", d);
11656f1b	336	return 1;
aba5acdf SH	337	}
	338	filter_ifindex = t.tcm_ifindex;
	339	}
	340
7c581a12 JK	341	if (dump_invisible) {
	342	struct {
	343	struct nlmsghdr n;
	344	struct tcmsg t;
	345	char buf[256];
	346	} req = {
	347	.n.nlmsg_type = RTM_GETQDISC,
	348	.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
	349	};
	350
	351	req.t.tcm_family = AF_UNSPEC;
	352
	353	addattr(&req.n, 256, TCA_DUMP_INVISIBLE);
	354	if (rtnl_dump_request_n(&rth, &req.n) < 0) {
	355	perror("Cannot send dump request");
	356	return 1;
	357	}
	358
	359	} else if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
aba5acdf	360	perror("Cannot send dump request");
11656f1b	361	return 1;
aba5acdf SH	362	}
aba5acdf SH	363
3d0b7439	364	if (rtnl_dump_filter(&rth, print_qdisc, stdout) < 0) {
aba5acdf	365	fprintf(stderr, "Dump terminated\n");
11656f1b	366	return 1;
aba5acdf SH	367	}
aba5acdf SH	368
aba5acdf SH	369	return 0;
	370	}
	371
	372	int do_qdisc(int argc, char **argv)
	373	{
	374	if (argc < 1)
	375	return tc_qdisc_list(0, NULL);
	376	if (matches(*argv, "add") == 0)
	377	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_EXCL\|NLM_F_CREATE, argc-1, argv+1);
	378	if (matches(*argv, "change") == 0)
	379	return tc_qdisc_modify(RTM_NEWQDISC, 0, argc-1, argv+1);
	380	if (matches(*argv, "replace") == 0)
	381	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_CREATE\|NLM_F_REPLACE, argc-1, argv+1);
	382	if (matches(*argv, "link") == 0)
	383	return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_REPLACE, argc-1, argv+1);
	384	if (matches(*argv, "delete") == 0)
	385	return tc_qdisc_modify(RTM_DELQDISC, 0, argc-1, argv+1);
	386	#if 0
	387	if (matches(*argv, "get") == 0)
	388	return tc_qdisc_get(RTM_GETQDISC, 0, argc-1, argv+1);
	389	#endif
	390	if (matches(argv, "list") == 0 \|\| matches(argv, "show") == 0
	391	\|\| matches(*argv, "lst") == 0)
	392	return tc_qdisc_list(argc-1, argv+1);
e5d179d8	393	if (matches(*argv, "help") == 0) {
aba5acdf	394	usage();
e5d179d8	395	return 0;
32a121cb	396	}
aba5acdf SH	397	fprintf(stderr, "Command \"%s\" is unknown, try \"tc qdisc help\".\n", *argv);
	398	return -1;
	399	}