[mirror_iproute2.git] / tc / f_rsvp.c

/*
 * q_rsvp.c		RSVP filter.
 *
 *		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>
 *
 */

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

#include "rt_names.h"
#include "utils.h"
#include "tc_util.h"

static void explain(void)
{
	fprintf(stderr,
		"Usage:	... rsvp ipproto PROTOCOL session DST[/PORT | GPI ]\n"
		"		[ sender SRC[/PORT | GPI ] ]\n"
		"		[ classid CLASSID ] [ action ACTION_SPEC ]\n"
		"		[ tunnelid ID ] [ tunnel ID skip NUMBER ]\n"
		"Where:	GPI := { flowlabel NUMBER | spi/ah SPI | spi/esp SPI |\n"
		"		u{8|16|32} NUMBER mask MASK at OFFSET}\n"
		"	ACTION_SPEC := ... look at individual actions\n"
		"	FILTERID := X:Y\n"
		"\nNOTE: CLASSID is parsed as hexadecimal input.\n");
}

static int get_addr_and_pi(int *argc_p, char ***argv_p, inet_prefix *addr,
		    struct tc_rsvp_pinfo *pinfo, int dir, int family)
{
	int argc = *argc_p;
	char **argv = *argv_p;
	char *p = strchr(*argv, '/');
	struct tc_rsvp_gpi *pi = dir ? &pinfo->dpi : &pinfo->spi;

	if (p) {
		__u16 tmp;

		if (get_u16(&tmp, p+1, 0))
			return -1;

		if (dir == 0) {
			/* Source port: u16 at offset 0 */
			pi->key = htonl(((__u32)tmp)<<16);
			pi->mask = htonl(0xFFFF0000);
		} else {
			/* Destination port: u16 at offset 2 */
			pi->key = htonl(((__u32)tmp));
			pi->mask = htonl(0x0000FFFF);
		}
		pi->offset = 0;
		*p = 0;
	}
	if (get_addr_1(addr, *argv, family))
		return -1;
	if (p)
		*p = '/';

	argc--; argv++;

	if (pi->mask || argc <= 0)
		goto done;

	if (strcmp(*argv, "spi/ah") == 0 ||
	    strcmp(*argv, "gpi/ah") == 0) {
		__u32 gpi;

		NEXT_ARG();
		if (get_u32(&gpi, *argv, 0))
			return -1;
		pi->mask = htonl(0xFFFFFFFF);
		pi->key = htonl(gpi);
		pi->offset = 4;
		if (pinfo->protocol == 0)
			pinfo->protocol = IPPROTO_AH;
		argc--; argv++;
	} else if (strcmp(*argv, "spi/esp") == 0 ||
		   strcmp(*argv, "gpi/esp") == 0) {
		__u32 gpi;

		NEXT_ARG();
		if (get_u32(&gpi, *argv, 0))
			return -1;
		pi->mask = htonl(0xFFFFFFFF);
		pi->key = htonl(gpi);
		pi->offset = 0;
		if (pinfo->protocol == 0)
			pinfo->protocol = IPPROTO_ESP;
		argc--; argv++;
	} else if (strcmp(*argv, "flowlabel") == 0) {
		__u32 flabel;

		NEXT_ARG();
		if (get_u32(&flabel, *argv, 0))
			return -1;
		if (family != AF_INET6)
			return -1;
		pi->mask = htonl(0x000FFFFF);
		pi->key = htonl(flabel) & pi->mask;
		pi->offset = -40;
		argc--; argv++;
	} else if (strcmp(*argv, "u32") == 0 ||
		   strcmp(*argv, "u16") == 0 ||
		   strcmp(*argv, "u8") == 0) {
		int sz = 1;
		__u32 tmp;
		__u32 mask = 0xff;

		if (strcmp(*argv, "u32") == 0) {
			sz = 4;
			mask = 0xffff;
		} else if (strcmp(*argv, "u16") == 0) {
			mask = 0xffffffff;
			sz = 2;
		}
		NEXT_ARG();
		if (get_u32(&tmp, *argv, 0))
			return -1;
		argc--; argv++;
		if (strcmp(*argv, "mask") == 0) {
			NEXT_ARG();
			if (get_u32(&mask, *argv, 16))
				return -1;
			argc--; argv++;
		}
		if (strcmp(*argv, "at") == 0) {
			NEXT_ARG();
			if (get_integer(&pi->offset, *argv, 0))
				return -1;
			argc--; argv++;
		}
		if (sz == 1) {
			if ((pi->offset & 3) == 0) {
				mask <<= 24;
				tmp <<= 24;
			} else if ((pi->offset & 3) == 1) {
				mask <<= 16;
				tmp <<= 16;
			} else if ((pi->offset & 3) == 3) {
				mask <<= 8;
				tmp <<= 8;
			}
		} else if (sz == 2) {
			if ((pi->offset & 3) == 0) {
				mask <<= 16;
				tmp <<= 16;
			}
		}
		pi->offset &= ~3;
		pi->mask = htonl(mask);
		pi->key = htonl(tmp) & pi->mask;
	}

done:
	*argc_p = argc;
	*argv_p = argv;
	return 0;
}


static int rsvp_parse_opt(struct filter_util *qu, char *handle, int argc,
			  char **argv, struct nlmsghdr *n)
{
	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
	struct tc_rsvp_pinfo pinfo = {};
	struct tcmsg *t = NLMSG_DATA(n);
	int pinfo_ok = 0;
	struct rtattr *tail;

	if (handle) {
		if (get_u32(&t->tcm_handle, handle, 0)) {
			fprintf(stderr, "Illegal \"handle\"\n");
			return -1;
		}
	}

	if (argc == 0)
		return 0;

	tail = addattr_nest(n, 4096, TCA_OPTIONS);

	while (argc > 0) {
		if (matches(*argv, "session") == 0) {
			inet_prefix addr;

			NEXT_ARG();
			if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 1, family)) {
				fprintf(stderr, "Illegal \"session\"\n");
				return -1;
			}
			addattr_l(n, 4096, TCA_RSVP_DST, &addr.data, addr.bytelen);
			if (pinfo.dpi.mask || pinfo.protocol)
				pinfo_ok++;
			continue;
		} else if (matches(*argv, "sender") == 0 ||
			   matches(*argv, "flowspec") == 0) {
			inet_prefix addr;

			NEXT_ARG();
			if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 0, family)) {
				fprintf(stderr, "Illegal \"sender\"\n");
				return -1;
			}
			addattr_l(n, 4096, TCA_RSVP_SRC, &addr.data, addr.bytelen);
			if (pinfo.spi.mask || pinfo.protocol)
				pinfo_ok++;
			continue;
		} else if (matches("ipproto", *argv) == 0) {
			int num;

			NEXT_ARG();
			num = inet_proto_a2n(*argv);
			if (num < 0) {
				fprintf(stderr, "Illegal \"ipproto\"\n");
				return -1;
			}
			pinfo.protocol = num;
			pinfo_ok++;
		} else if (matches(*argv, "classid") == 0 ||
			   strcmp(*argv, "flowid") == 0) {
			unsigned int handle;

			NEXT_ARG();
			if (get_tc_classid(&handle, *argv)) {
				fprintf(stderr, "Illegal \"classid\"\n");
				return -1;
			}
			addattr_l(n, 4096, TCA_RSVP_CLASSID, &handle, 4);
		} else if (strcmp(*argv, "tunnelid") == 0) {
			unsigned int tid;

			NEXT_ARG();
			if (get_unsigned(&tid, *argv, 0)) {
				fprintf(stderr, "Illegal \"tunnelid\"\n");
				return -1;
			}
			pinfo.tunnelid = tid;
			pinfo_ok++;
		} else if (strcmp(*argv, "tunnel") == 0) {
			unsigned int tid;

			NEXT_ARG();
			if (get_unsigned(&tid, *argv, 0)) {
				fprintf(stderr, "Illegal \"tunnel\"\n");
				return -1;
			}
			addattr_l(n, 4096, TCA_RSVP_CLASSID, &tid, 4);
			NEXT_ARG();
			if (strcmp(*argv, "skip") == 0) {
				NEXT_ARG();
			}
			if (get_unsigned(&tid, *argv, 0)) {
				fprintf(stderr, "Illegal \"skip\"\n");
				return -1;
			}
			pinfo.tunnelhdr = tid;
			pinfo_ok++;
		} else if (matches(*argv, "action") == 0) {
			NEXT_ARG();
			if (parse_action(&argc, &argv, TCA_RSVP_ACT, n)) {
				fprintf(stderr, "Illegal \"action\"\n");
				return -1;
			}
			continue;
		} else if (matches(*argv, "police") == 0) {
			NEXT_ARG();
			if (parse_police(&argc, &argv, TCA_RSVP_POLICE, n)) {
				fprintf(stderr, "Illegal \"police\"\n");
				return -1;
			}
			continue;
		} else if (strcmp(*argv, "help") == 0) {
			explain();
			return -1;
		} else {
			fprintf(stderr, "What is \"%s\"?\n", *argv);
			explain();
			return -1;
		}
		argc--; argv++;
	}

	if (pinfo_ok)
		addattr_l(n, 4096, TCA_RSVP_PINFO, &pinfo, sizeof(pinfo));
	addattr_nest_end(n, tail);
	return 0;
}

static char *sprint_spi(struct tc_rsvp_gpi *pi, int dir, char *buf)
{
	if (pi->offset == 0) {
		if (dir && pi->mask == htonl(0xFFFF)) {
			snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key));
			return buf;
		}
		if (!dir && pi->mask == htonl(0xFFFF0000)) {
			snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key)>>16);
			return buf;
		}
		if (pi->mask == htonl(0xFFFFFFFF)) {
			snprintf(buf, SPRINT_BSIZE-1, " spi/esp 0x%08x", htonl(pi->key));
			return buf;
		}
	} else if (pi->offset == 4 && pi->mask == htonl(0xFFFFFFFF)) {
		snprintf(buf, SPRINT_BSIZE-1, " spi/ah 0x%08x", htonl(pi->key));
		return buf;
	} else if (pi->offset == -40 && pi->mask == htonl(0x000FFFFF)) {
		snprintf(buf, SPRINT_BSIZE-1, " flowlabel 0x%05x", htonl(pi->key));
		return buf;
	}
	snprintf(buf, SPRINT_BSIZE-1, " u32 0x%08x mask %08x at %d",
		 htonl(pi->key), htonl(pi->mask), pi->offset);
	return buf;
}

static int rsvp_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 handle)
{
	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
	struct rtattr *tb[TCA_RSVP_MAX+1];
	struct tc_rsvp_pinfo *pinfo = NULL;

	if (opt == NULL)
		return 0;

	parse_rtattr_nested(tb, TCA_RSVP_MAX, opt);

	if (handle)
		fprintf(f, "fh 0x%08x ", handle);

	if (tb[TCA_RSVP_PINFO]) {
		if (RTA_PAYLOAD(tb[TCA_RSVP_PINFO])  < sizeof(*pinfo))
			return -1;

		pinfo = RTA_DATA(tb[TCA_RSVP_PINFO]);
	}

	if (tb[TCA_RSVP_CLASSID]) {
		SPRINT_BUF(b1);
		if (!pinfo || pinfo->tunnelhdr == 0)
			fprintf(f, "flowid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_RSVP_CLASSID]), b1));
		else
			fprintf(f, "tunnel %d skip %d ", rta_getattr_u32(tb[TCA_RSVP_CLASSID]), pinfo->tunnelhdr);
	} else if (pinfo && pinfo->tunnelhdr)
		fprintf(f, "tunnel [BAD] skip %d ", pinfo->tunnelhdr);

	if (tb[TCA_RSVP_DST]) {
		char buf[128];

		fprintf(f, "session ");
		if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_DST]), buf, sizeof(buf)) == 0)
			fprintf(f, " [INVALID DADDR] ");
		else
			fprintf(f, "%s", buf);
		if (pinfo && pinfo->dpi.mask) {
			SPRINT_BUF(b2);
			fprintf(f, "%s ", sprint_spi(&pinfo->dpi, 1, b2));
		} else
			fprintf(f, " ");
	} else {
		if (pinfo && pinfo->dpi.mask) {
			SPRINT_BUF(b2);
			fprintf(f, "session [NONE]%s ", sprint_spi(&pinfo->dpi, 1, b2));
		} else
			fprintf(f, "session NONE ");
	}

	if (pinfo && pinfo->protocol) {
		SPRINT_BUF(b1);
		fprintf(f, "ipproto %s ", inet_proto_n2a(pinfo->protocol, b1, sizeof(b1)));
	}
	if (pinfo && pinfo->tunnelid)
		fprintf(f, "tunnelid %d ", pinfo->tunnelid);
	if (tb[TCA_RSVP_SRC]) {
		char buf[128];

		fprintf(f, "sender ");
		if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_SRC]), buf, sizeof(buf)) == 0) {
			fprintf(f, "[BAD]");
		} else {
			fprintf(f, " %s", buf);
		}
		if (pinfo && pinfo->spi.mask) {
			SPRINT_BUF(b2);
			fprintf(f, "%s ", sprint_spi(&pinfo->spi, 0, b2));
		} else
			fprintf(f, " ");
	} else if (pinfo && pinfo->spi.mask) {
		SPRINT_BUF(b2);
		fprintf(f, "sender [NONE]%s ", sprint_spi(&pinfo->spi, 0, b2));
	}

	if (tb[TCA_RSVP_ACT]) {
		tc_print_action(f, tb[TCA_RSVP_ACT], 0);
	}
	if (tb[TCA_RSVP_POLICE])
		tc_print_police(f, tb[TCA_RSVP_POLICE]);
	return 0;
}

struct filter_util rsvp_filter_util = {
	.id = "rsvp",
	.parse_fopt = rsvp_parse_opt,
	.print_fopt = rsvp_print_opt,
};

struct filter_util rsvp6_filter_util = {
	.id = "rsvp6",
	.parse_fopt = rsvp_parse_opt,
	.print_fopt = rsvp_print_opt,
};
Commit	Line	Data
aba5acdf SH	1	/*
	2	* q_rsvp.c RSVP filter.
	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	*/
	12
	13	#include <stdio.h>
	14	#include <stdlib.h>
	15	#include <unistd.h>
aba5acdf SH	16	#include <fcntl.h>
	17	#include <sys/socket.h>
	18	#include <netinet/in.h>
	19	#include <arpa/inet.h>
	20	#include <string.h>
	21
	22	#include "rt_names.h"
	23	#include "utils.h"
	24	#include "tc_util.h"
	25
	26	static void explain(void)
	27	{
8589eb4e MC	28	fprintf(stderr,
	29	"Usage: ... rsvp ipproto PROTOCOL session DST[/PORT \| GPI ]\n"
	30	" [ sender SRC[/PORT \| GPI ] ]\n"
	31	" [ classid CLASSID ] [ action ACTION_SPEC ]\n"
	32	" [ tunnelid ID ] [ tunnel ID skip NUMBER ]\n"
	33	"Where: GPI := { flowlabel NUMBER \| spi/ah SPI \| spi/esp SPI \|\n"
	34	" u{8\|16\|32} NUMBER mask MASK at OFFSET}\n"
	35	" ACTION_SPEC := ... look at individual actions\n"
	36	" FILTERID := X:Y\n"
	37	"\nNOTE: CLASSID is parsed as hexadecimal input.\n");
aba5acdf SH	38	}
aba5acdf SH	39
32a121cb	40	static int get_addr_and_pi(int argc_p, char *argv_p, inet_prefix addr,
aba5acdf SH	41	struct tc_rsvp_pinfo *pinfo, int dir, int family)
	42	{
	43	int argc = *argc_p;
	44	char *argv = argv_p;
	45	char p = strchr(argv, '/');
	46	struct tc_rsvp_gpi *pi = dir ? &pinfo->dpi : &pinfo->spi;
	47
	48	if (p) {
	49	__u16 tmp;
	50
	51	if (get_u16(&tmp, p+1, 0))
	52	return -1;
	53
	54	if (dir == 0) {
	55	/* Source port: u16 at offset 0 */
	56	pi->key = htonl(((__u32)tmp)<<16);
	57	pi->mask = htonl(0xFFFF0000);
	58	} else {
	59	/* Destination port: u16 at offset 2 */
	60	pi->key = htonl(((__u32)tmp));
	61	pi->mask = htonl(0x0000FFFF);
	62	}
	63	pi->offset = 0;
	64	*p = 0;
	65	}
	66	if (get_addr_1(addr, *argv, family))
	67	return -1;
	68	if (p)
	69	*p = '/';
	70
	71	argc--; argv++;
	72
	73	if (pi->mask \|\| argc <= 0)
	74	goto done;
	75
	76	if (strcmp(*argv, "spi/ah") == 0 \|\|
	77	strcmp(*argv, "gpi/ah") == 0) {
	78	__u32 gpi;
32a121cb	79
aba5acdf SH	80	NEXT_ARG();
	81	if (get_u32(&gpi, *argv, 0))
	82	return -1;
	83	pi->mask = htonl(0xFFFFFFFF);
	84	pi->key = htonl(gpi);
	85	pi->offset = 4;
	86	if (pinfo->protocol == 0)
	87	pinfo->protocol = IPPROTO_AH;
	88	argc--; argv++;
	89	} else if (strcmp(*argv, "spi/esp") == 0 \|\|
	90	strcmp(*argv, "gpi/esp") == 0) {
	91	__u32 gpi;
32a121cb	92
aba5acdf SH	93	NEXT_ARG();
	94	if (get_u32(&gpi, *argv, 0))
	95	return -1;
	96	pi->mask = htonl(0xFFFFFFFF);
	97	pi->key = htonl(gpi);
	98	pi->offset = 0;
	99	if (pinfo->protocol == 0)
	100	pinfo->protocol = IPPROTO_ESP;
	101	argc--; argv++;
	102	} else if (strcmp(*argv, "flowlabel") == 0) {
	103	__u32 flabel;
32a121cb	104
aba5acdf SH	105	NEXT_ARG();
	106	if (get_u32(&flabel, *argv, 0))
	107	return -1;
	108	if (family != AF_INET6)
	109	return -1;
	110	pi->mask = htonl(0x000FFFFF);
	111	pi->key = htonl(flabel) & pi->mask;
	112	pi->offset = -40;
	113	argc--; argv++;
	114	} else if (strcmp(*argv, "u32") == 0 \|\|
	115	strcmp(*argv, "u16") == 0 \|\|
	116	strcmp(*argv, "u8") == 0) {
	117	int sz = 1;
	118	__u32 tmp;
	119	__u32 mask = 0xff;
32a121cb	120
aba5acdf SH	121	if (strcmp(*argv, "u32") == 0) {
	122	sz = 4;
	123	mask = 0xffff;
	124	} else if (strcmp(*argv, "u16") == 0) {
	125	mask = 0xffffffff;
	126	sz = 2;
	127	}
	128	NEXT_ARG();
	129	if (get_u32(&tmp, *argv, 0))
	130	return -1;
	131	argc--; argv++;
	132	if (strcmp(*argv, "mask") == 0) {
	133	NEXT_ARG();
	134	if (get_u32(&mask, *argv, 16))
	135	return -1;
	136	argc--; argv++;
	137	}
	138	if (strcmp(*argv, "at") == 0) {
	139	NEXT_ARG();
	140	if (get_integer(&pi->offset, *argv, 0))
	141	return -1;
	142	argc--; argv++;
	143	}
	144	if (sz == 1) {
	145	if ((pi->offset & 3) == 0) {
	146	mask <<= 24;
	147	tmp <<= 24;
	148	} else if ((pi->offset & 3) == 1) {
	149	mask <<= 16;
	150	tmp <<= 16;
	151	} else if ((pi->offset & 3) == 3) {
	152	mask <<= 8;
	153	tmp <<= 8;
	154	}
	155	} else if (sz == 2) {
	156	if ((pi->offset & 3) == 0) {
	157	mask <<= 16;
	158	tmp <<= 16;
	159	}
	160	}
	161	pi->offset &= ~3;
	162	pi->mask = htonl(mask);
	163	pi->key = htonl(tmp) & pi->mask;
	164	}
	165
	166	done:
	167	*argc_p = argc;
	168	*argv_p = argv;
	169	return 0;
	170	}
	171
	172
859af0a5 SH	173	static int rsvp_parse_opt(struct filter_util qu, char handle, int argc,
859af0a5 SH	174	char *argv, struct nlmsghdr n)
aba5acdf SH	175	{
aba5acdf SH	176	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
d17b136f	177	struct tc_rsvp_pinfo pinfo = {};
aba5acdf SH	178	struct tcmsg *t = NLMSG_DATA(n);
	179	int pinfo_ok = 0;
	180	struct rtattr *tail;
	181
aba5acdf SH	182	if (handle) {
	183	if (get_u32(&t->tcm_handle, handle, 0)) {
	184	fprintf(stderr, "Illegal \"handle\"\n");
	185	return -1;
	186	}
	187	}
	188
	189	if (argc == 0)
	190	return 0;
	191
c14f9d92	192	tail = addattr_nest(n, 4096, TCA_OPTIONS);
aba5acdf SH	193
	194	while (argc > 0) {
	195	if (matches(*argv, "session") == 0) {
	196	inet_prefix addr;
32a121cb	197
aba5acdf SH	198	NEXT_ARG();
	199	if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 1, family)) {
	200	fprintf(stderr, "Illegal \"session\"\n");
	201	return -1;
	202	}
	203	addattr_l(n, 4096, TCA_RSVP_DST, &addr.data, addr.bytelen);
	204	if (pinfo.dpi.mask \|\| pinfo.protocol)
	205	pinfo_ok++;
	206	continue;
	207	} else if (matches(*argv, "sender") == 0 \|\|
	208	matches(*argv, "flowspec") == 0) {
	209	inet_prefix addr;
32a121cb	210
aba5acdf SH	211	NEXT_ARG();
	212	if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 0, family)) {
	213	fprintf(stderr, "Illegal \"sender\"\n");
	214	return -1;
	215	}
	216	addattr_l(n, 4096, TCA_RSVP_SRC, &addr.data, addr.bytelen);
	217	if (pinfo.spi.mask \|\| pinfo.protocol)
	218	pinfo_ok++;
	219	continue;
	220	} else if (matches("ipproto", *argv) == 0) {
	221	int num;
32a121cb	222
aba5acdf SH	223	NEXT_ARG();
	224	num = inet_proto_a2n(*argv);
	225	if (num < 0) {
	226	fprintf(stderr, "Illegal \"ipproto\"\n");
	227	return -1;
	228	}
	229	pinfo.protocol = num;
	230	pinfo_ok++;
	231	} else if (matches(*argv, "classid") == 0 \|\|
	232	strcmp(*argv, "flowid") == 0) {
32a121cb SH	233	unsigned int handle;
32a121cb SH	234
aba5acdf SH	235	NEXT_ARG();
	236	if (get_tc_classid(&handle, *argv)) {
	237	fprintf(stderr, "Illegal \"classid\"\n");
	238	return -1;
	239	}
	240	addattr_l(n, 4096, TCA_RSVP_CLASSID, &handle, 4);
	241	} else if (strcmp(*argv, "tunnelid") == 0) {
32a121cb SH	242	unsigned int tid;
32a121cb SH	243
aba5acdf SH	244	NEXT_ARG();
	245	if (get_unsigned(&tid, *argv, 0)) {
	246	fprintf(stderr, "Illegal \"tunnelid\"\n");
	247	return -1;
	248	}
	249	pinfo.tunnelid = tid;
	250	pinfo_ok++;
	251	} else if (strcmp(*argv, "tunnel") == 0) {
32a121cb SH	252	unsigned int tid;
32a121cb SH	253
aba5acdf SH	254	NEXT_ARG();
	255	if (get_unsigned(&tid, *argv, 0)) {
	256	fprintf(stderr, "Illegal \"tunnel\"\n");
	257	return -1;
	258	}
	259	addattr_l(n, 4096, TCA_RSVP_CLASSID, &tid, 4);
	260	NEXT_ARG();
	261	if (strcmp(*argv, "skip") == 0) {
	262	NEXT_ARG();
	263	}
	264	if (get_unsigned(&tid, *argv, 0)) {
	265	fprintf(stderr, "Illegal \"skip\"\n");
	266	return -1;
	267	}
	268	pinfo.tunnelhdr = tid;
	269	pinfo_ok++;
10f5a375 JHS	270	} else if (matches(*argv, "action") == 0) {
	271	NEXT_ARG();
	272	if (parse_action(&argc, &argv, TCA_RSVP_ACT, n)) {
	273	fprintf(stderr, "Illegal \"action\"\n");
	274	return -1;
	275	}
	276	continue;
aba5acdf SH	277	} else if (matches(*argv, "police") == 0) {
	278	NEXT_ARG();
	279	if (parse_police(&argc, &argv, TCA_RSVP_POLICE, n)) {
	280	fprintf(stderr, "Illegal \"police\"\n");
	281	return -1;
	282	}
	283	continue;
	284	} else if (strcmp(*argv, "help") == 0) {
	285	explain();
	286	return -1;
	287	} else {
	288	fprintf(stderr, "What is \"%s\"?\n", *argv);
	289	explain();
	290	return -1;
	291	}
	292	argc--; argv++;
	293	}
	294
	295	if (pinfo_ok)
	296	addattr_l(n, 4096, TCA_RSVP_PINFO, &pinfo, sizeof(pinfo));
c14f9d92	297	addattr_nest_end(n, tail);
aba5acdf SH	298	return 0;
	299	}
	300
32a121cb	301	static char sprint_spi(struct tc_rsvp_gpi pi, int dir, char *buf)
aba5acdf SH	302	{
	303	if (pi->offset == 0) {
	304	if (dir && pi->mask == htonl(0xFFFF)) {
	305	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key));
	306	return buf;
	307	}
	308	if (!dir && pi->mask == htonl(0xFFFF0000)) {
	309	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key)>>16);
	310	return buf;
	311	}
	312	if (pi->mask == htonl(0xFFFFFFFF)) {
	313	snprintf(buf, SPRINT_BSIZE-1, " spi/esp 0x%08x", htonl(pi->key));
	314	return buf;
	315	}
	316	} else if (pi->offset == 4 && pi->mask == htonl(0xFFFFFFFF)) {
	317	snprintf(buf, SPRINT_BSIZE-1, " spi/ah 0x%08x", htonl(pi->key));
	318	return buf;
	319	} else if (pi->offset == -40 && pi->mask == htonl(0x000FFFFF)) {
	320	snprintf(buf, SPRINT_BSIZE-1, " flowlabel 0x%05x", htonl(pi->key));
	321	return buf;
	322	}
	323	snprintf(buf, SPRINT_BSIZE-1, " u32 0x%08x mask %08x at %d",
	324	htonl(pi->key), htonl(pi->mask), pi->offset);
	325	return buf;
	326	}
	327
	328	static int rsvp_print_opt(struct filter_util qu, FILE f, struct rtattr *opt, __u32 handle)
	329	{
	330	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
	331	struct rtattr *tb[TCA_RSVP_MAX+1];
	332	struct tc_rsvp_pinfo *pinfo = NULL;
	333
	334	if (opt == NULL)
	335	return 0;
	336
3b3ecd31	337	parse_rtattr_nested(tb, TCA_RSVP_MAX, opt);
aba5acdf SH	338
	339	if (handle)
	340	fprintf(f, "fh 0x%08x ", handle);
	341
	342	if (tb[TCA_RSVP_PINFO]) {
	343	if (RTA_PAYLOAD(tb[TCA_RSVP_PINFO]) < sizeof(*pinfo))
	344	return -1;
	345
	346	pinfo = RTA_DATA(tb[TCA_RSVP_PINFO]);
	347	}
	348
	349	if (tb[TCA_RSVP_CLASSID]) {
	350	SPRINT_BUF(b1);
	351	if (!pinfo \|\| pinfo->tunnelhdr == 0)
ff24746c	352	fprintf(f, "flowid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_RSVP_CLASSID]), b1));
aba5acdf	353	else
ff24746c	354	fprintf(f, "tunnel %d skip %d ", rta_getattr_u32(tb[TCA_RSVP_CLASSID]), pinfo->tunnelhdr);
aba5acdf SH	355	} else if (pinfo && pinfo->tunnelhdr)
	356	fprintf(f, "tunnel [BAD] skip %d ", pinfo->tunnelhdr);
	357
	358	if (tb[TCA_RSVP_DST]) {
	359	char buf[128];
32a121cb	360
aba5acdf SH	361	fprintf(f, "session ");
	362	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_DST]), buf, sizeof(buf)) == 0)
	363	fprintf(f, " [INVALID DADDR] ");
	364	else
	365	fprintf(f, "%s", buf);
	366	if (pinfo && pinfo->dpi.mask) {
	367	SPRINT_BUF(b2);
	368	fprintf(f, "%s ", sprint_spi(&pinfo->dpi, 1, b2));
	369	} else
	370	fprintf(f, " ");
	371	} else {
	372	if (pinfo && pinfo->dpi.mask) {
	373	SPRINT_BUF(b2);
	374	fprintf(f, "session [NONE]%s ", sprint_spi(&pinfo->dpi, 1, b2));
	375	} else
	376	fprintf(f, "session NONE ");
	377	}
	378
	379	if (pinfo && pinfo->protocol) {
	380	SPRINT_BUF(b1);
	381	fprintf(f, "ipproto %s ", inet_proto_n2a(pinfo->protocol, b1, sizeof(b1)));
	382	}
	383	if (pinfo && pinfo->tunnelid)
	384	fprintf(f, "tunnelid %d ", pinfo->tunnelid);
	385	if (tb[TCA_RSVP_SRC]) {
	386	char buf[128];
32a121cb	387
aba5acdf SH	388	fprintf(f, "sender ");
	389	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_SRC]), buf, sizeof(buf)) == 0) {
	390	fprintf(f, "[BAD]");
	391	} else {
	392	fprintf(f, " %s", buf);
	393	}
	394	if (pinfo && pinfo->spi.mask) {
	395	SPRINT_BUF(b2);
	396	fprintf(f, "%s ", sprint_spi(&pinfo->spi, 0, b2));
	397	} else
	398	fprintf(f, " ");
	399	} else if (pinfo && pinfo->spi.mask) {
	400	SPRINT_BUF(b2);
	401	fprintf(f, "sender [NONE]%s ", sprint_spi(&pinfo->spi, 0, b2));
	402	}
10f5a375 JHS	403
10f5a375 JHS	404	if (tb[TCA_RSVP_ACT]) {
9e713525	405	tc_print_action(f, tb[TCA_RSVP_ACT], 0);
10f5a375	406	}
aba5acdf SH	407	if (tb[TCA_RSVP_POLICE])
	408	tc_print_police(f, tb[TCA_RSVP_POLICE]);
	409	return 0;
	410	}
	411
6b7dff17 SH	412	struct filter_util rsvp_filter_util = {
	413	.id = "rsvp",
	414	.parse_fopt = rsvp_parse_opt,
	415	.print_fopt = rsvp_print_opt,
aba5acdf SH	416	};
aba5acdf SH	417
6b7dff17 SH	418	struct filter_util rsvp6_filter_util = {
	419	.id = "rsvp6",
	420	.parse_fopt = rsvp_parse_opt,
	421	.print_fopt = rsvp_print_opt,
aba5acdf	422	};