[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");
	fprintf(stderr, "                [ sender SRC[/PORT | GPI ] ]\n");
	fprintf(stderr, "                [ classid CLASSID ] [ action ACTION_SPEC ]\n");
	fprintf(stderr, "                [ tunnelid ID ] [ tunnel ID skip NUMBER ]\n");
	fprintf(stderr, "Where: GPI := { flowlabel NUMBER | spi/ah SPI | spi/esp SPI |\n");
	fprintf(stderr, "                u{8|16|32} NUMBER mask MASK at OFFSET}\n");
	fprintf(stderr, "       ACTION_SPEC := ... look at individual actions\n");
	fprintf(stderr, "       FILTERID := X:Y\n");
	fprintf(stderr, "\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	{
	28	fprintf(stderr, "Usage: ... rsvp ipproto PROTOCOL session DST[/PORT \| GPI ]\n");
0a83e1ea	29	fprintf(stderr, " [ sender SRC[/PORT \| GPI ] ]\n");
863ecb04	30	fprintf(stderr, " [ classid CLASSID ] [ action ACTION_SPEC ]\n");
aba5acdf SH	31	fprintf(stderr, " [ tunnelid ID ] [ tunnel ID skip NUMBER ]\n");
	32	fprintf(stderr, "Where: GPI := { flowlabel NUMBER \| spi/ah SPI \| spi/esp SPI \|\n");
	33	fprintf(stderr, " u{8\|16\|32} NUMBER mask MASK at OFFSET}\n");
863ecb04	34	fprintf(stderr, " ACTION_SPEC := ... look at individual actions\n");
aba5acdf	35	fprintf(stderr, " FILTERID := X:Y\n");
e9acc242	36	fprintf(stderr, "\nNOTE: CLASSID is parsed as hexadecimal input.\n");
aba5acdf SH	37	}
aba5acdf SH	38
32a121cb	39	static int get_addr_and_pi(int argc_p, char *argv_p, inet_prefix addr,
aba5acdf SH	40	struct tc_rsvp_pinfo *pinfo, int dir, int family)
	41	{
	42	int argc = *argc_p;
	43	char *argv = argv_p;
	44	char p = strchr(argv, '/');
	45	struct tc_rsvp_gpi *pi = dir ? &pinfo->dpi : &pinfo->spi;
	46
	47	if (p) {
	48	__u16 tmp;
	49
	50	if (get_u16(&tmp, p+1, 0))
	51	return -1;
	52
	53	if (dir == 0) {
	54	/* Source port: u16 at offset 0 */
	55	pi->key = htonl(((__u32)tmp)<<16);
	56	pi->mask = htonl(0xFFFF0000);
	57	} else {
	58	/* Destination port: u16 at offset 2 */
	59	pi->key = htonl(((__u32)tmp));
	60	pi->mask = htonl(0x0000FFFF);
	61	}
	62	pi->offset = 0;
	63	*p = 0;
	64	}
	65	if (get_addr_1(addr, *argv, family))
	66	return -1;
	67	if (p)
	68	*p = '/';
	69
	70	argc--; argv++;
	71
	72	if (pi->mask \|\| argc <= 0)
	73	goto done;
	74
	75	if (strcmp(*argv, "spi/ah") == 0 \|\|
	76	strcmp(*argv, "gpi/ah") == 0) {
	77	__u32 gpi;
32a121cb	78
aba5acdf SH	79	NEXT_ARG();
	80	if (get_u32(&gpi, *argv, 0))
	81	return -1;
	82	pi->mask = htonl(0xFFFFFFFF);
	83	pi->key = htonl(gpi);
	84	pi->offset = 4;
	85	if (pinfo->protocol == 0)
	86	pinfo->protocol = IPPROTO_AH;
	87	argc--; argv++;
	88	} else if (strcmp(*argv, "spi/esp") == 0 \|\|
	89	strcmp(*argv, "gpi/esp") == 0) {
	90	__u32 gpi;
32a121cb	91
aba5acdf SH	92	NEXT_ARG();
	93	if (get_u32(&gpi, *argv, 0))
	94	return -1;
	95	pi->mask = htonl(0xFFFFFFFF);
	96	pi->key = htonl(gpi);
	97	pi->offset = 0;
	98	if (pinfo->protocol == 0)
	99	pinfo->protocol = IPPROTO_ESP;
	100	argc--; argv++;
	101	} else if (strcmp(*argv, "flowlabel") == 0) {
	102	__u32 flabel;
32a121cb	103
aba5acdf SH	104	NEXT_ARG();
	105	if (get_u32(&flabel, *argv, 0))
	106	return -1;
	107	if (family != AF_INET6)
	108	return -1;
	109	pi->mask = htonl(0x000FFFFF);
	110	pi->key = htonl(flabel) & pi->mask;
	111	pi->offset = -40;
	112	argc--; argv++;
	113	} else if (strcmp(*argv, "u32") == 0 \|\|
	114	strcmp(*argv, "u16") == 0 \|\|
	115	strcmp(*argv, "u8") == 0) {
	116	int sz = 1;
	117	__u32 tmp;
	118	__u32 mask = 0xff;
32a121cb	119
aba5acdf SH	120	if (strcmp(*argv, "u32") == 0) {
	121	sz = 4;
	122	mask = 0xffff;
	123	} else if (strcmp(*argv, "u16") == 0) {
	124	mask = 0xffffffff;
	125	sz = 2;
	126	}
	127	NEXT_ARG();
	128	if (get_u32(&tmp, *argv, 0))
	129	return -1;
	130	argc--; argv++;
	131	if (strcmp(*argv, "mask") == 0) {
	132	NEXT_ARG();
	133	if (get_u32(&mask, *argv, 16))
	134	return -1;
	135	argc--; argv++;
	136	}
	137	if (strcmp(*argv, "at") == 0) {
	138	NEXT_ARG();
	139	if (get_integer(&pi->offset, *argv, 0))
	140	return -1;
	141	argc--; argv++;
	142	}
	143	if (sz == 1) {
	144	if ((pi->offset & 3) == 0) {
	145	mask <<= 24;
	146	tmp <<= 24;
	147	} else if ((pi->offset & 3) == 1) {
	148	mask <<= 16;
	149	tmp <<= 16;
	150	} else if ((pi->offset & 3) == 3) {
	151	mask <<= 8;
	152	tmp <<= 8;
	153	}
	154	} else if (sz == 2) {
	155	if ((pi->offset & 3) == 0) {
	156	mask <<= 16;
	157	tmp <<= 16;
	158	}
	159	}
	160	pi->offset &= ~3;
	161	pi->mask = htonl(mask);
	162	pi->key = htonl(tmp) & pi->mask;
	163	}
	164
	165	done:
	166	*argc_p = argc;
	167	*argv_p = argv;
	168	return 0;
	169	}
	170
	171
859af0a5 SH	172	static int rsvp_parse_opt(struct filter_util qu, char handle, int argc,
859af0a5 SH	173	char *argv, struct nlmsghdr n)
aba5acdf SH	174	{
aba5acdf SH	175	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
d17b136f	176	struct tc_rsvp_pinfo pinfo = {};
aba5acdf SH	177	struct tcmsg *t = NLMSG_DATA(n);
	178	int pinfo_ok = 0;
	179	struct rtattr *tail;
	180
aba5acdf SH	181	if (handle) {
	182	if (get_u32(&t->tcm_handle, handle, 0)) {
	183	fprintf(stderr, "Illegal \"handle\"\n");
	184	return -1;
	185	}
	186	}
	187
	188	if (argc == 0)
	189	return 0;
	190
c14f9d92	191	tail = addattr_nest(n, 4096, TCA_OPTIONS);
aba5acdf SH	192
	193	while (argc > 0) {
	194	if (matches(*argv, "session") == 0) {
	195	inet_prefix addr;
32a121cb	196
aba5acdf SH	197	NEXT_ARG();
	198	if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 1, family)) {
	199	fprintf(stderr, "Illegal \"session\"\n");
	200	return -1;
	201	}
	202	addattr_l(n, 4096, TCA_RSVP_DST, &addr.data, addr.bytelen);
	203	if (pinfo.dpi.mask \|\| pinfo.protocol)
	204	pinfo_ok++;
	205	continue;
	206	} else if (matches(*argv, "sender") == 0 \|\|
	207	matches(*argv, "flowspec") == 0) {
	208	inet_prefix addr;
32a121cb	209
aba5acdf SH	210	NEXT_ARG();
	211	if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 0, family)) {
	212	fprintf(stderr, "Illegal \"sender\"\n");
	213	return -1;
	214	}
	215	addattr_l(n, 4096, TCA_RSVP_SRC, &addr.data, addr.bytelen);
	216	if (pinfo.spi.mask \|\| pinfo.protocol)
	217	pinfo_ok++;
	218	continue;
	219	} else if (matches("ipproto", *argv) == 0) {
	220	int num;
32a121cb	221
aba5acdf SH	222	NEXT_ARG();
	223	num = inet_proto_a2n(*argv);
	224	if (num < 0) {
	225	fprintf(stderr, "Illegal \"ipproto\"\n");
	226	return -1;
	227	}
	228	pinfo.protocol = num;
	229	pinfo_ok++;
	230	} else if (matches(*argv, "classid") == 0 \|\|
	231	strcmp(*argv, "flowid") == 0) {
32a121cb SH	232	unsigned int handle;
32a121cb SH	233
aba5acdf SH	234	NEXT_ARG();
	235	if (get_tc_classid(&handle, *argv)) {
	236	fprintf(stderr, "Illegal \"classid\"\n");
	237	return -1;
	238	}
	239	addattr_l(n, 4096, TCA_RSVP_CLASSID, &handle, 4);
	240	} else if (strcmp(*argv, "tunnelid") == 0) {
32a121cb SH	241	unsigned int tid;
32a121cb SH	242
aba5acdf SH	243	NEXT_ARG();
	244	if (get_unsigned(&tid, *argv, 0)) {
	245	fprintf(stderr, "Illegal \"tunnelid\"\n");
	246	return -1;
	247	}
	248	pinfo.tunnelid = tid;
	249	pinfo_ok++;
	250	} else if (strcmp(*argv, "tunnel") == 0) {
32a121cb SH	251	unsigned int tid;
32a121cb SH	252
aba5acdf SH	253	NEXT_ARG();
	254	if (get_unsigned(&tid, *argv, 0)) {
	255	fprintf(stderr, "Illegal \"tunnel\"\n");
	256	return -1;
	257	}
	258	addattr_l(n, 4096, TCA_RSVP_CLASSID, &tid, 4);
	259	NEXT_ARG();
	260	if (strcmp(*argv, "skip") == 0) {
	261	NEXT_ARG();
	262	}
	263	if (get_unsigned(&tid, *argv, 0)) {
	264	fprintf(stderr, "Illegal \"skip\"\n");
	265	return -1;
	266	}
	267	pinfo.tunnelhdr = tid;
	268	pinfo_ok++;
10f5a375 JHS	269	} else if (matches(*argv, "action") == 0) {
	270	NEXT_ARG();
	271	if (parse_action(&argc, &argv, TCA_RSVP_ACT, n)) {
	272	fprintf(stderr, "Illegal \"action\"\n");
	273	return -1;
	274	}
	275	continue;
aba5acdf SH	276	} else if (matches(*argv, "police") == 0) {
	277	NEXT_ARG();
	278	if (parse_police(&argc, &argv, TCA_RSVP_POLICE, n)) {
	279	fprintf(stderr, "Illegal \"police\"\n");
	280	return -1;
	281	}
	282	continue;
	283	} else if (strcmp(*argv, "help") == 0) {
	284	explain();
	285	return -1;
	286	} else {
	287	fprintf(stderr, "What is \"%s\"?\n", *argv);
	288	explain();
	289	return -1;
	290	}
	291	argc--; argv++;
	292	}
	293
	294	if (pinfo_ok)
	295	addattr_l(n, 4096, TCA_RSVP_PINFO, &pinfo, sizeof(pinfo));
c14f9d92	296	addattr_nest_end(n, tail);
aba5acdf SH	297	return 0;
	298	}
	299
32a121cb	300	static char sprint_spi(struct tc_rsvp_gpi pi, int dir, char *buf)
aba5acdf SH	301	{
	302	if (pi->offset == 0) {
	303	if (dir && pi->mask == htonl(0xFFFF)) {
	304	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key));
	305	return buf;
	306	}
	307	if (!dir && pi->mask == htonl(0xFFFF0000)) {
	308	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key)>>16);
	309	return buf;
	310	}
	311	if (pi->mask == htonl(0xFFFFFFFF)) {
	312	snprintf(buf, SPRINT_BSIZE-1, " spi/esp 0x%08x", htonl(pi->key));
	313	return buf;
	314	}
	315	} else if (pi->offset == 4 && pi->mask == htonl(0xFFFFFFFF)) {
	316	snprintf(buf, SPRINT_BSIZE-1, " spi/ah 0x%08x", htonl(pi->key));
	317	return buf;
	318	} else if (pi->offset == -40 && pi->mask == htonl(0x000FFFFF)) {
	319	snprintf(buf, SPRINT_BSIZE-1, " flowlabel 0x%05x", htonl(pi->key));
	320	return buf;
	321	}
	322	snprintf(buf, SPRINT_BSIZE-1, " u32 0x%08x mask %08x at %d",
	323	htonl(pi->key), htonl(pi->mask), pi->offset);
	324	return buf;
	325	}
	326
	327	static int rsvp_print_opt(struct filter_util qu, FILE f, struct rtattr *opt, __u32 handle)
	328	{
	329	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
	330	struct rtattr *tb[TCA_RSVP_MAX+1];
	331	struct tc_rsvp_pinfo *pinfo = NULL;
	332
	333	if (opt == NULL)
	334	return 0;
	335
3b3ecd31	336	parse_rtattr_nested(tb, TCA_RSVP_MAX, opt);
aba5acdf SH	337
	338	if (handle)
	339	fprintf(f, "fh 0x%08x ", handle);
	340
	341	if (tb[TCA_RSVP_PINFO]) {
	342	if (RTA_PAYLOAD(tb[TCA_RSVP_PINFO]) < sizeof(*pinfo))
	343	return -1;
	344
	345	pinfo = RTA_DATA(tb[TCA_RSVP_PINFO]);
	346	}
	347
	348	if (tb[TCA_RSVP_CLASSID]) {
	349	SPRINT_BUF(b1);
	350	if (!pinfo \|\| pinfo->tunnelhdr == 0)
ff24746c	351	fprintf(f, "flowid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_RSVP_CLASSID]), b1));
aba5acdf	352	else
ff24746c	353	fprintf(f, "tunnel %d skip %d ", rta_getattr_u32(tb[TCA_RSVP_CLASSID]), pinfo->tunnelhdr);
aba5acdf SH	354	} else if (pinfo && pinfo->tunnelhdr)
	355	fprintf(f, "tunnel [BAD] skip %d ", pinfo->tunnelhdr);
	356
	357	if (tb[TCA_RSVP_DST]) {
	358	char buf[128];
32a121cb	359
aba5acdf SH	360	fprintf(f, "session ");
	361	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_DST]), buf, sizeof(buf)) == 0)
	362	fprintf(f, " [INVALID DADDR] ");
	363	else
	364	fprintf(f, "%s", buf);
	365	if (pinfo && pinfo->dpi.mask) {
	366	SPRINT_BUF(b2);
	367	fprintf(f, "%s ", sprint_spi(&pinfo->dpi, 1, b2));
	368	} else
	369	fprintf(f, " ");
	370	} else {
	371	if (pinfo && pinfo->dpi.mask) {
	372	SPRINT_BUF(b2);
	373	fprintf(f, "session [NONE]%s ", sprint_spi(&pinfo->dpi, 1, b2));
	374	} else
	375	fprintf(f, "session NONE ");
	376	}
	377
	378	if (pinfo && pinfo->protocol) {
	379	SPRINT_BUF(b1);
	380	fprintf(f, "ipproto %s ", inet_proto_n2a(pinfo->protocol, b1, sizeof(b1)));
	381	}
	382	if (pinfo && pinfo->tunnelid)
	383	fprintf(f, "tunnelid %d ", pinfo->tunnelid);
	384	if (tb[TCA_RSVP_SRC]) {
	385	char buf[128];
32a121cb	386
aba5acdf SH	387	fprintf(f, "sender ");
	388	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_SRC]), buf, sizeof(buf)) == 0) {
	389	fprintf(f, "[BAD]");
	390	} else {
	391	fprintf(f, " %s", buf);
	392	}
	393	if (pinfo && pinfo->spi.mask) {
	394	SPRINT_BUF(b2);
	395	fprintf(f, "%s ", sprint_spi(&pinfo->spi, 0, b2));
	396	} else
	397	fprintf(f, " ");
	398	} else if (pinfo && pinfo->spi.mask) {
	399	SPRINT_BUF(b2);
	400	fprintf(f, "sender [NONE]%s ", sprint_spi(&pinfo->spi, 0, b2));
	401	}
10f5a375 JHS	402
10f5a375 JHS	403	if (tb[TCA_RSVP_ACT]) {
9e713525	404	tc_print_action(f, tb[TCA_RSVP_ACT], 0);
10f5a375	405	}
aba5acdf SH	406	if (tb[TCA_RSVP_POLICE])
	407	tc_print_police(f, tb[TCA_RSVP_POLICE]);
	408	return 0;
	409	}
	410
6b7dff17 SH	411	struct filter_util rsvp_filter_util = {
	412	.id = "rsvp",
	413	.parse_fopt = rsvp_parse_opt,
	414	.print_fopt = rsvp_print_opt,
aba5acdf SH	415	};
aba5acdf SH	416
6b7dff17 SH	417	struct filter_util rsvp6_filter_util = {
	418	.id = "rsvp6",
	419	.parse_fopt = rsvp_parse_opt,
	420	.print_fopt = rsvp_print_opt,
aba5acdf	421	};