[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 <syslog.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 ] [ police POLICE_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, "       POLICE_SPEC := ... look at TBF\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 tc_police tp;
	struct tcmsg *t = NLMSG_DATA(n);
	int pinfo_ok = 0;
	struct rtattr *tail;

	memset(&pinfo, 0, sizeof(pinfo));
	memset(&tp, 0, sizeof(tp));

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

	if (argc == 0)
		return 0;

	tail = NLMSG_TAIL(n);
	addattr_l(n, 4096, TCA_OPTIONS, NULL, 0);

	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 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 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 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, "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));
	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) 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_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>
	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
	23	#include "rt_names.h"
	24	#include "utils.h"
	25	#include "tc_util.h"
	26
	27	static void explain(void)
	28	{
	29	fprintf(stderr, "Usage: ... rsvp ipproto PROTOCOL session DST[/PORT \| GPI ]\n");
	30	fprintf(stderr, " [ sender SRC[/PORT \| GPI ]\n");
	31	fprintf(stderr, " [ classid CLASSID ] [ police POLICE_SPEC ]\n");
	32	fprintf(stderr, " [ tunnelid ID ] [ tunnel ID skip NUMBER ]\n");
	33	fprintf(stderr, "Where: GPI := { flowlabel NUMBER \| spi/ah SPI \| spi/esp SPI \|\n");
	34	fprintf(stderr, " u{8\|16\|32} NUMBER mask MASK at OFFSET}\n");
	35	fprintf(stderr, " POLICE_SPEC := ... look at TBF\n");
	36	fprintf(stderr, " FILTERID := X:Y\n");
e9acc242	37	fprintf(stderr, "\nNOTE: CLASSID is parsed as hexadecimal input.\n");
aba5acdf SH	38	}
aba5acdf SH	39
d1f28cf1	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;
	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;
	91	NEXT_ARG();
	92	if (get_u32(&gpi, *argv, 0))
	93	return -1;
	94	pi->mask = htonl(0xFFFFFFFF);
	95	pi->key = htonl(gpi);
	96	pi->offset = 0;
	97	if (pinfo->protocol == 0)
	98	pinfo->protocol = IPPROTO_ESP;
	99	argc--; argv++;
	100	} else if (strcmp(*argv, "flowlabel") == 0) {
	101	__u32 flabel;
	102	NEXT_ARG();
	103	if (get_u32(&flabel, *argv, 0))
	104	return -1;
105	if (family != AF_INET6)
106	return -1;
107	pi->mask = htonl(0x000FFFFF);
108	pi->key = htonl(flabel) & pi->mask;
109	pi->offset = -40;
110	argc--; argv++;
111	} else if (strcmp(*argv, "u32") == 0 \|\|
112	strcmp(*argv, "u16") == 0 \|\|
113	strcmp(*argv, "u8") == 0) {
114	int sz = 1;
115	__u32 tmp;
116	__u32 mask = 0xff;
117	if (strcmp(*argv, "u32") == 0) {
118	sz = 4;
119	mask = 0xffff;
120	} else if (strcmp(*argv, "u16") == 0) {
121	mask = 0xffffffff;
122	sz = 2;
123	}
124	NEXT_ARG();
125	if (get_u32(&tmp, *argv, 0))
126	return -1;
127	argc--; argv++;
128	if (strcmp(*argv, "mask") == 0) {
129	NEXT_ARG();
130	if (get_u32(&mask, *argv, 16))
131	return -1;
132	argc--; argv++;
133	}
134	if (strcmp(*argv, "at") == 0) {
135	NEXT_ARG();
136	if (get_integer(&pi->offset, *argv, 0))
137	return -1;
138	argc--; argv++;
139	}
140	if (sz == 1) {
141	if ((pi->offset & 3) == 0) {
142	mask <<= 24;
143	tmp <<= 24;
144	} else if ((pi->offset & 3) == 1) {
145	mask <<= 16;
146	tmp <<= 16;
147	} else if ((pi->offset & 3) == 3) {
148	mask <<= 8;
149	tmp <<= 8;
150	}
151	} else if (sz == 2) {
152	if ((pi->offset & 3) == 0) {
153	mask <<= 16;
154	tmp <<= 16;
155	}
156	}
157	pi->offset &= ~3;
158	pi->mask = htonl(mask);
159	pi->key = htonl(tmp) & pi->mask;
160	}
161
162	done:
163	*argc_p = argc;
164	*argv_p = argv;
165	return 0;
166	}
167
168
169	static int rsvp_parse_opt(struct filter_util qu, char handle, int argc, char *argv, struct nlmsghdr n)
170	{
171	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
172	struct tc_rsvp_pinfo pinfo;
173	struct tc_police tp;
174	struct tcmsg *t = NLMSG_DATA(n);
175	int pinfo_ok = 0;
176	struct rtattr *tail;
177
178	memset(&pinfo, 0, sizeof(pinfo));
179	memset(&tp, 0, sizeof(tp));
180
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
228569c3	191	tail = NLMSG_TAIL(n);
aba5acdf SH	192	addattr_l(n, 4096, TCA_OPTIONS, NULL, 0);
	193
	194	while (argc > 0) {
	195	if (matches(*argv, "session") == 0) {
	196	inet_prefix addr;
	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;
	209	NEXT_ARG();
	210	if (get_addr_and_pi(&argc, &argv, &addr, &pinfo, 0, family)) {
	211	fprintf(stderr, "Illegal \"sender\"\n");
	212	return -1;
	213	}
	214	addattr_l(n, 4096, TCA_RSVP_SRC, &addr.data, addr.bytelen);
	215	if (pinfo.spi.mask \|\| pinfo.protocol)
	216	pinfo_ok++;
	217	continue;
	218	} else if (matches("ipproto", *argv) == 0) {
	219	int num;
	220	NEXT_ARG();
	221	num = inet_proto_a2n(*argv);
	222	if (num < 0) {
	223	fprintf(stderr, "Illegal \"ipproto\"\n");
	224	return -1;
	225	}
	226	pinfo.protocol = num;
	227	pinfo_ok++;
	228	} else if (matches(*argv, "classid") == 0 \|\|
	229	strcmp(*argv, "flowid") == 0) {
	230	unsigned handle;
	231	NEXT_ARG();
	232	if (get_tc_classid(&handle, *argv)) {
	233	fprintf(stderr, "Illegal \"classid\"\n");
	234	return -1;
	235	}
	236	addattr_l(n, 4096, TCA_RSVP_CLASSID, &handle, 4);
	237	} else if (strcmp(*argv, "tunnelid") == 0) {
	238	unsigned tid;
	239	NEXT_ARG();
	240	if (get_unsigned(&tid, *argv, 0)) {
	241	fprintf(stderr, "Illegal \"tunnelid\"\n");
	242	return -1;
	243	}
	244	pinfo.tunnelid = tid;
	245	pinfo_ok++;
	246	} else if (strcmp(*argv, "tunnel") == 0) {
	247	unsigned tid;
	248	NEXT_ARG();
	249	if (get_unsigned(&tid, *argv, 0)) {
	250	fprintf(stderr, "Illegal \"tunnel\"\n");
	251	return -1;
	252	}
	253	addattr_l(n, 4096, TCA_RSVP_CLASSID, &tid, 4);
	254	NEXT_ARG();
	255	if (strcmp(*argv, "skip") == 0) {
256	NEXT_ARG();
257	}
258	if (get_unsigned(&tid, *argv, 0)) {
259	fprintf(stderr, "Illegal \"skip\"\n");
260	return -1;
261	}
262	pinfo.tunnelhdr = tid;
263	pinfo_ok++;
264	} else if (matches(*argv, "police") == 0) {
265	NEXT_ARG();
266	if (parse_police(&argc, &argv, TCA_RSVP_POLICE, n)) {
267	fprintf(stderr, "Illegal \"police\"\n");
268	return -1;
269	}
270	continue;
271	} else if (strcmp(*argv, "help") == 0) {
272	explain();
273	return -1;
274	} else {
275	fprintf(stderr, "What is \"%s\"?\n", *argv);
276	explain();
277	return -1;
278	}
279	argc--; argv++;
280	}
281
282	if (pinfo_ok)
283	addattr_l(n, 4096, TCA_RSVP_PINFO, &pinfo, sizeof(pinfo));
228569c3	284	tail->rta_len = (void ) NLMSG_TAIL(n) - (void ) tail;
aba5acdf SH	285	return 0;
	286	}
	287
	288	static char * sprint_spi(struct tc_rsvp_gpi pi, int dir, char buf)
	289	{
	290	if (pi->offset == 0) {
	291	if (dir && pi->mask == htonl(0xFFFF)) {
	292	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key));
	293	return buf;
	294	}
	295	if (!dir && pi->mask == htonl(0xFFFF0000)) {
	296	snprintf(buf, SPRINT_BSIZE-1, "/%d", htonl(pi->key)>>16);
	297	return buf;
	298	}
	299	if (pi->mask == htonl(0xFFFFFFFF)) {
	300	snprintf(buf, SPRINT_BSIZE-1, " spi/esp 0x%08x", htonl(pi->key));
	301	return buf;
	302	}
	303	} else if (pi->offset == 4 && pi->mask == htonl(0xFFFFFFFF)) {
	304	snprintf(buf, SPRINT_BSIZE-1, " spi/ah 0x%08x", htonl(pi->key));
	305	return buf;
	306	} else if (pi->offset == -40 && pi->mask == htonl(0x000FFFFF)) {
	307	snprintf(buf, SPRINT_BSIZE-1, " flowlabel 0x%05x", htonl(pi->key));
	308	return buf;
	309	}
	310	snprintf(buf, SPRINT_BSIZE-1, " u32 0x%08x mask %08x at %d",
	311	htonl(pi->key), htonl(pi->mask), pi->offset);
	312	return buf;
	313	}
	314
	315	static int rsvp_print_opt(struct filter_util qu, FILE f, struct rtattr *opt, __u32 handle)
	316	{
	317	int family = strcmp(qu->id, "rsvp") == 0 ? AF_INET : AF_INET6;
	318	struct rtattr *tb[TCA_RSVP_MAX+1];
	319	struct tc_rsvp_pinfo *pinfo = NULL;
	320
	321	if (opt == NULL)
	322	return 0;
	323
3b3ecd31	324	parse_rtattr_nested(tb, TCA_RSVP_MAX, opt);
aba5acdf SH	325
	326	if (handle)
	327	fprintf(f, "fh 0x%08x ", handle);
	328
	329	if (tb[TCA_RSVP_PINFO]) {
	330	if (RTA_PAYLOAD(tb[TCA_RSVP_PINFO]) < sizeof(*pinfo))
	331	return -1;
	332
	333	pinfo = RTA_DATA(tb[TCA_RSVP_PINFO]);
	334	}
	335
	336	if (tb[TCA_RSVP_CLASSID]) {
	337	SPRINT_BUF(b1);
	338	if (!pinfo \|\| pinfo->tunnelhdr == 0)
ff24746c	339	fprintf(f, "flowid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_RSVP_CLASSID]), b1));
aba5acdf	340	else
ff24746c	341	fprintf(f, "tunnel %d skip %d ", rta_getattr_u32(tb[TCA_RSVP_CLASSID]), pinfo->tunnelhdr);
aba5acdf SH	342	} else if (pinfo && pinfo->tunnelhdr)
	343	fprintf(f, "tunnel [BAD] skip %d ", pinfo->tunnelhdr);
	344
	345	if (tb[TCA_RSVP_DST]) {
	346	char buf[128];
	347	fprintf(f, "session ");
	348	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_DST]), buf, sizeof(buf)) == 0)
	349	fprintf(f, " [INVALID DADDR] ");
	350	else
	351	fprintf(f, "%s", buf);
	352	if (pinfo && pinfo->dpi.mask) {
	353	SPRINT_BUF(b2);
	354	fprintf(f, "%s ", sprint_spi(&pinfo->dpi, 1, b2));
	355	} else
	356	fprintf(f, " ");
	357	} else {
	358	if (pinfo && pinfo->dpi.mask) {
	359	SPRINT_BUF(b2);
	360	fprintf(f, "session [NONE]%s ", sprint_spi(&pinfo->dpi, 1, b2));
	361	} else
	362	fprintf(f, "session NONE ");
	363	}
	364
	365	if (pinfo && pinfo->protocol) {
	366	SPRINT_BUF(b1);
	367	fprintf(f, "ipproto %s ", inet_proto_n2a(pinfo->protocol, b1, sizeof(b1)));
	368	}
	369	if (pinfo && pinfo->tunnelid)
	370	fprintf(f, "tunnelid %d ", pinfo->tunnelid);
	371	if (tb[TCA_RSVP_SRC]) {
	372	char buf[128];
	373	fprintf(f, "sender ");
	374	if (inet_ntop(family, RTA_DATA(tb[TCA_RSVP_SRC]), buf, sizeof(buf)) == 0) {
	375	fprintf(f, "[BAD]");
	376	} else {
	377	fprintf(f, " %s", buf);
	378	}
	379	if (pinfo && pinfo->spi.mask) {
	380	SPRINT_BUF(b2);
	381	fprintf(f, "%s ", sprint_spi(&pinfo->spi, 0, b2));
	382	} else
	383	fprintf(f, " ");
	384	} else if (pinfo && pinfo->spi.mask) {
	385	SPRINT_BUF(b2);
	386	fprintf(f, "sender [NONE]%s ", sprint_spi(&pinfo->spi, 0, b2));
	387	}
	388	if (tb[TCA_RSVP_POLICE])
	389	tc_print_police(f, tb[TCA_RSVP_POLICE]);
	390	return 0;
	391	}
	392
6b7dff17 SH	393	struct filter_util rsvp_filter_util = {
	394	.id = "rsvp",
	395	.parse_fopt = rsvp_parse_opt,
	396	.print_fopt = rsvp_print_opt,
aba5acdf SH	397	};
aba5acdf SH	398
6b7dff17 SH	399	struct filter_util rsvp6_filter_util = {
	400	.id = "rsvp6",
	401	.parse_fopt = rsvp_parse_opt,
	402	.print_fopt = rsvp_print_opt,
aba5acdf	403	};