Blame ip/iprule.c

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/*
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 * iprule.c		"ip rule".
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 *
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 *		This program is free software; you can redistribute it and/or
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 *		modify it under the terms of the GNU General Public License
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 *		as published by the Free Software Foundation; either version
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 *		2 of the License, or (at your option) any later version.
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 *
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 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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 *
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include <linux/if.h>
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#include <linux/fib_rules.h>
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#include <errno.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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#include "json_print.h"
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enum list_action {
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	IPRULE_LIST,
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	IPRULE_FLUSH,
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	IPRULE_SAVE,
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};
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extern struct rtnl_handle rth;
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static void usage(void) __attribute__((noreturn));
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static void usage(void)
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{
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	fprintf(stderr,
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		"Usage: ip rule { add | del } SELECTOR ACTION\n"
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		"       ip rule { flush | save | restore }\n"
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		"       ip rule [ list [ SELECTOR ]]\n"
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		"SELECTOR := [ not ] [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK[/MASK] ]\n"
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		"            [ iif STRING ] [ oif STRING ] [ pref NUMBER ] [ l3mdev ]\n"
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		"            [ uidrange NUMBER-NUMBER ]\n"
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		"            [ ipproto PROTOCOL ]\n"
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		"            [ sport [ NUMBER | NUMBER-NUMBER ]\n"
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		"            [ dport [ NUMBER | NUMBER-NUMBER ] ]\n"
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		"ACTION := [ table TABLE_ID ]\n"
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		"          [ protocol PROTO ]\n"
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		"          [ nat ADDRESS ]\n"
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		"          [ realms [SRCREALM/]DSTREALM ]\n"
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		"          [ goto NUMBER ]\n"
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		"          SUPPRESSOR\n"
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		"SUPPRESSOR := [ suppress_prefixlength NUMBER ]\n"
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		"              [ suppress_ifgroup DEVGROUP ]\n"
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		"TABLE_ID := [ local | main | default | NUMBER ]\n");
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	exit(-1);
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}
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static struct
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{
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	int not;
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	int l3mdev;
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	int iifmask, oifmask, uidrange;
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	unsigned int tb;
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	unsigned int tos, tosmask;
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	unsigned int pref, prefmask;
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	unsigned int fwmark, fwmask;
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	uint64_t tun_id;
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	char iif[IFNAMSIZ];
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	char oif[IFNAMSIZ];
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	struct fib_rule_uid_range range;
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	inet_prefix src;
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	inet_prefix dst;
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	int protocol;
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	int protocolmask;
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	struct fib_rule_port_range sport;
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	struct fib_rule_port_range dport;
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	__u8 ipproto;
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} filter;
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static inline int frh_get_table(struct fib_rule_hdr *frh, struct rtattr **tb)
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{
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	__u32 table = frh->table;
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	if (tb[RTA_TABLE])
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		table = rta_getattr_u32(tb[RTA_TABLE]);
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	return table;
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}
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static bool filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int host_len)
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{
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	struct fib_rule_hdr *frh = NLMSG_DATA(n);
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	__u32 table;
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	if (preferred_family != AF_UNSPEC && frh->family != preferred_family)
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		return false;
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	if (filter.prefmask &&
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	    filter.pref ^ (tb[FRA_PRIORITY] ? rta_getattr_u32(tb[FRA_PRIORITY]) : 0))
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		return false;
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	if (filter.not && !(frh->flags & FIB_RULE_INVERT))
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		return false;
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	if (filter.src.family) {
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		inet_prefix *f_src = &filter.src;
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		if (f_src->family != frh->family ||
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		    f_src->bitlen > frh->src_len)
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			return false;
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		if (inet_addr_match_rta(f_src, tb[FRA_SRC]))
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			return false;
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	}
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	if (filter.dst.family) {
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		inet_prefix *f_dst = &filter.dst;
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		if (f_dst->family != frh->family ||
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		    f_dst->bitlen > frh->dst_len)
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			return false;
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		if (inet_addr_match_rta(f_dst, tb[FRA_DST]))
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			return false;
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	}
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	if (filter.tosmask && filter.tos ^ frh->tos)
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		return false;
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	if (filter.fwmark) {
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		__u32 mark = 0;
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		if (tb[FRA_FWMARK])
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			mark = rta_getattr_u32(tb[FRA_FWMARK]);
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		if (filter.fwmark ^ mark)
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			return false;
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	}
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	if (filter.fwmask) {
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		__u32 mask = 0;
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		if (tb[FRA_FWMASK])
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			mask = rta_getattr_u32(tb[FRA_FWMASK]);
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		if (filter.fwmask ^ mask)
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			return false;
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	}
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	if (filter.iifmask) {
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		if (tb[FRA_IFNAME]) {
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			if (strcmp(filter.iif, rta_getattr_str(tb[FRA_IFNAME])) != 0)
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				return false;
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		} else {
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			return false;
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		}
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	}
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	if (filter.oifmask) {
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		if (tb[FRA_OIFNAME]) {
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			if (strcmp(filter.oif, rta_getattr_str(tb[FRA_OIFNAME])) != 0)
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				return false;
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		} else {
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			return false;
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		}
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	}
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	if (filter.l3mdev && !(tb[FRA_L3MDEV] && rta_getattr_u8(tb[FRA_L3MDEV])))
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		return false;
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	if (filter.uidrange) {
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		struct fib_rule_uid_range *r = RTA_DATA(tb[FRA_UID_RANGE]);
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		if (!tb[FRA_UID_RANGE] ||
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		    r->start != filter.range.start ||
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		    r->end != filter.range.end)
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			return false;
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	}
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	if (filter.ipproto) {
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		__u8 ipproto = 0;
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		if (tb[FRA_IP_PROTO])
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			ipproto = rta_getattr_u8(tb[FRA_IP_PROTO]);
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		if (filter.ipproto != ipproto)
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			return false;
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	}
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	if (filter.sport.start) {
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		const struct fib_rule_port_range *r;
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		if (!tb[FRA_SPORT_RANGE])
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			return false;
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		r = RTA_DATA(tb[FRA_SPORT_RANGE]);
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		if (r->start != filter.sport.start ||
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		    r->end != filter.sport.end)
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			return false;
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	}
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	if (filter.dport.start) {
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		const struct fib_rule_port_range *r;
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		if (!tb[FRA_DPORT_RANGE])
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			return false;
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		r = RTA_DATA(tb[FRA_DPORT_RANGE]);
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		if (r->start != filter.dport.start ||
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		    r->end != filter.dport.end)
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			return false;
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	}
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	if (filter.tun_id) {
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		__u64 tun_id = 0;
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		if (tb[FRA_TUN_ID]) {
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			tun_id = ntohll(rta_getattr_u64(tb[FRA_TUN_ID]));
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			if (filter.tun_id != tun_id)
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				return false;
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		} else {
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			return false;
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		}
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	}
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	table = frh_get_table(frh, tb);
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	if (filter.tb > 0 && filter.tb ^ table)
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		return false;
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	return true;
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}
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int print_rule(struct nlmsghdr *n, void *arg)
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{
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	FILE *fp = arg;
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	struct fib_rule_hdr *frh = NLMSG_DATA(n);
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	int len = n->nlmsg_len;
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	int host_len = -1;
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	__u32 table, prio = 0;
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	struct rtattr *tb[FRA_MAX+1];
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	SPRINT_BUF(b1);
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	if (n->nlmsg_type != RTM_NEWRULE && n->nlmsg_type != RTM_DELRULE)
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		return 0;
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	len -= NLMSG_LENGTH(sizeof(*frh));
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	if (len < 0)
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		return -1;
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	parse_rtattr(tb, FRA_MAX, RTM_RTA(frh), len);
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	host_len = af_bit_len(frh->family);
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	if (!filter_nlmsg(n, tb, host_len))
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		return 0;
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	open_json_object(NULL);
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	if (n->nlmsg_type == RTM_DELRULE)
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		print_bool(PRINT_ANY, "deleted", "Deleted ", true);
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	if (tb[FRA_PRIORITY])
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		prio = rta_getattr_u32(tb[FRA_PRIORITY]);
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	print_uint(PRINT_ANY, "priority", "%u:\t", prio);
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	if (frh->flags & FIB_RULE_INVERT)
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		print_null(PRINT_ANY, "not", "not ", NULL);
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	if (tb[FRA_SRC]) {
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		const char *src = rt_addr_n2a_rta(frh->family, tb[FRA_SRC]);
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		print_string(PRINT_FP, NULL, "from ", NULL);
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		print_color_string(PRINT_ANY, ifa_family_color(frh->family),
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				   "src", "%s", src);
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		if (frh->src_len != host_len)
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			print_uint(PRINT_ANY, "srclen", "/%u", frh->src_len);
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	} else if (frh->src_len) {
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		print_string(PRINT_ANY, "src", "from %s", "0");
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		print_uint(PRINT_ANY, "srclen", "/%u", frh->src_len);
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	} else {
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		print_string(PRINT_ANY, "src", "from %s", "all");
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	}
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	if (tb[FRA_DST]) {
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		const char *dst = rt_addr_n2a_rta(frh->family, tb[FRA_DST]);
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		print_string(PRINT_FP, NULL, " to ", NULL);
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		print_color_string(PRINT_ANY, ifa_family_color(frh->family),
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				   "dst", "%s", dst);
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		if (frh->dst_len != host_len)
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			print_uint(PRINT_ANY, "dstlen", "/%u", frh->dst_len);
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	} else if (frh->dst_len) {
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		print_string(PRINT_ANY, "dst", " to %s", "0");
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		print_uint(PRINT_ANY, "dstlen", "/%u", frh->dst_len);
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	}
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	if (frh->tos) {
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		print_string(PRINT_ANY, "tos",
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			     " tos %s",
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			     rtnl_dsfield_n2a(frh->tos, b1, sizeof(b1)));
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	}
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	if (tb[FRA_FWMARK] || tb[FRA_FWMASK]) {
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		__u32 mark = 0, mask = 0;
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		if (tb[FRA_FWMARK])
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			mark = rta_getattr_u32(tb[FRA_FWMARK]);
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		if (tb[FRA_FWMASK] &&
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		    (mask = rta_getattr_u32(tb[FRA_FWMASK])) != 0xFFFFFFFF) {
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			print_0xhex(PRINT_ANY, "fwmark", " fwmark %#llx", mark);
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			print_0xhex(PRINT_ANY, "fwmask", "/%#llx", mask);
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		} else {
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			print_0xhex(PRINT_ANY, "fwmark", " fwmark %#llx", mark);
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		}
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	}
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	if (tb[FRA_IFNAME]) {
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		if (!is_json_context())
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			fprintf(fp, " iif ");
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		print_color_string(PRINT_ANY, COLOR_IFNAME,
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				   "iif", "%s",
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				   rta_getattr_str(tb[FRA_IFNAME]));
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		if (frh->flags & FIB_RULE_IIF_DETACHED)
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			print_null(PRINT_ANY, "iif_detached", " [detached]",
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				   NULL);
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	}
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	if (tb[FRA_OIFNAME]) {
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		if (!is_json_context())
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			fprintf(fp, " oif ");
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		print_color_string(PRINT_ANY, COLOR_IFNAME, "oif", "%s",
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				   rta_getattr_str(tb[FRA_OIFNAME]));
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		if (frh->flags & FIB_RULE_OIF_DETACHED)
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			print_null(PRINT_ANY, "oif_detached", " [detached]",
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				   NULL);
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	}
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	if (tb[FRA_L3MDEV]) {
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		__u8 mdev = rta_getattr_u8(tb[FRA_L3MDEV]);
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		if (mdev)
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			print_null(PRINT_ANY, "l3mdev",
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				   " lookup [l3mdev-table]", NULL);
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	}
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	if (tb[FRA_UID_RANGE]) {
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		struct fib_rule_uid_range *r = RTA_DATA(tb[FRA_UID_RANGE]);
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		print_uint(PRINT_ANY, "uid_start", " uidrange %u", r->start);
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		print_uint(PRINT_ANY, "uid_end", "-%u", r->end);
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	}
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	if (tb[FRA_IP_PROTO]) {
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		SPRINT_BUF(pbuf);
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		print_string(PRINT_ANY, "ipproto", " ipproto %s",
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			     inet_proto_n2a(rta_getattr_u8(tb[FRA_IP_PROTO]),
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					    pbuf, sizeof(pbuf)));
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	}
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	if (tb[FRA_SPORT_RANGE]) {
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		struct fib_rule_port_range *r = RTA_DATA(tb[FRA_SPORT_RANGE]);
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		if (r->start == r->end) {
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			print_uint(PRINT_ANY, "sport", " sport %u", r->start);
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		} else {
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			print_uint(PRINT_ANY, "sport_start", " sport %u",
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				   r->start);
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			print_uint(PRINT_ANY, "sport_end", "-%u", r->end);
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		}
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	}
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	if (tb[FRA_DPORT_RANGE]) {
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		struct fib_rule_port_range *r = RTA_DATA(tb[FRA_DPORT_RANGE]);
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		if (r->start == r->end) {
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			print_uint(PRINT_ANY, "dport", " dport %u", r->start);
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		} else {
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			print_uint(PRINT_ANY, "dport_start", " dport %u",
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				   r->start);
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			print_uint(PRINT_ANY, "dport_end", "-%u", r->end);
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		}
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	}
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	if (tb[FRA_TUN_ID]) {
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		__u64 tun_id = ntohll(rta_getattr_u64(tb[FRA_TUN_ID]));
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		print_u64(PRINT_ANY, "tun_id", " tun_id %llu", tun_id);
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	}
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	table = frh_get_table(frh, tb);
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	if (table) {
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		print_string(PRINT_ANY, "table",
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			     " lookup %s",
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			     rtnl_rttable_n2a(table, b1, sizeof(b1)));
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		if (tb[FRA_SUPPRESS_PREFIXLEN]) {
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			int pl = rta_getattr_u32(tb[FRA_SUPPRESS_PREFIXLEN]);
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			if (pl != -1)
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				print_int(PRINT_ANY, "suppress_prefixlen",
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					  " suppress_prefixlength %d", pl);
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		}
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		if (tb[FRA_SUPPRESS_IFGROUP]) {
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			int group = rta_getattr_u32(tb[FRA_SUPPRESS_IFGROUP]);
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			if (group != -1) {
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				const char *grname
Packit Service 3880ab
					= rtnl_group_n2a(group, b1, sizeof(b1));
Packit Service 3880ab
Packit Service 3880ab
				print_string(PRINT_ANY, "suppress_ifgroup",
Packit Service 3880ab
					     " suppress_ifgroup %s", grname);
Packit Service 3880ab
			}
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[FRA_FLOW]) {
Packit Service 3880ab
		__u32 to = rta_getattr_u32(tb[FRA_FLOW]);
Packit Service 3880ab
		__u32 from = to>>16;
Packit Service 3880ab
Packit Service 3880ab
		to &= 0xFFFF;
Packit Service 3880ab
		if (from)
Packit Service 3880ab
			print_string(PRINT_ANY,
Packit Service 3880ab
				     "flow_from", " realms %s/",
Packit Service 3880ab
				     rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
Packit Service 3880ab
		else
Packit Service 3880ab
			print_string(PRINT_FP, NULL, " realms ", NULL);
Packit Service 3880ab
Packit Service 3880ab
		print_string(PRINT_ANY, "flow_to", "%s",
Packit Service 3880ab
			     rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (frh->action == RTN_NAT) {
Packit Service 3880ab
		if (tb[RTA_GATEWAY]) {
Packit Service 3880ab
			const char *gateway;
Packit Service 3880ab
Packit Service 3880ab
			gateway = format_host_rta(frh->family, tb[RTA_GATEWAY]);
Packit Service 3880ab
Packit Service 3880ab
			print_string(PRINT_ANY, "nat_gateway",
Packit Service 3880ab
				     " map-to %s", gateway);
Packit Service 3880ab
		} else {
Packit Service 3880ab
			print_null(PRINT_ANY, "masquerade", " masquerade", NULL);
Packit Service 3880ab
		}
Packit Service 3880ab
	} else if (frh->action == FR_ACT_GOTO) {
Packit Service 3880ab
		if (tb[FRA_GOTO])
Packit Service 3880ab
			print_uint(PRINT_ANY, "goto", " goto %u",
Packit Service 3880ab
				   rta_getattr_u32(tb[FRA_GOTO]));
Packit Service 3880ab
		else
Packit Service 3880ab
			print_string(PRINT_ANY, "goto", " goto %s", "none");
Packit Service 3880ab
Packit Service 3880ab
		if (frh->flags & FIB_RULE_UNRESOLVED)
Packit Service 3880ab
			print_null(PRINT_ANY, "unresolved",
Packit Service 3880ab
				   " [unresolved]", NULL);
Packit Service 3880ab
	} else if (frh->action == FR_ACT_NOP) {
Packit Service 3880ab
		print_null(PRINT_ANY, "nop", " nop", NULL);
Packit Service 3880ab
	} else if (frh->action != FR_ACT_TO_TBL) {
Packit Service 3880ab
		print_string(PRINT_ANY, "action", " %s",
Packit Service 3880ab
			     rtnl_rtntype_n2a(frh->action, b1, sizeof(b1)));
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[FRA_PROTOCOL]) {
Packit Service 3880ab
		__u8 protocol = rta_getattr_u8(tb[FRA_PROTOCOL]);
Packit Service 3880ab
Packit Service 3880ab
		if ((protocol && protocol != RTPROT_KERNEL) || show_details > 0) {
Packit Service 3880ab
			print_string(PRINT_ANY, "protocol", " proto %s",
Packit Service 3880ab
				     rtnl_rtprot_n2a(protocol, b1, sizeof(b1)));
Packit Service 3880ab
		}
Packit Service 3880ab
	}
Packit Service 3880ab
	print_string(PRINT_FP, NULL, "\n", "");
Packit Service 3880ab
	close_json_object();
Packit Service 3880ab
	fflush(fp);
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static __u32 rule_dump_magic = 0x71706986;
Packit Service 3880ab
Packit Service 3880ab
static int save_rule_prep(void)
Packit Service 3880ab
{
Packit Service 3880ab
	int ret;
Packit Service 3880ab
Packit Service 3880ab
	if (isatty(STDOUT_FILENO)) {
Packit Service 3880ab
		fprintf(stderr, "Not sending a binary stream to stdout\n");
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	ret = write(STDOUT_FILENO, &rule_dump_magic, sizeof(rule_dump_magic));
Packit Service 3880ab
	if (ret != sizeof(rule_dump_magic)) {
Packit Service 3880ab
		fprintf(stderr, "Can't write magic to dump file\n");
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int save_rule(struct nlmsghdr *n, void *arg)
Packit Service 3880ab
{
Packit Service 3880ab
	int ret;
Packit Service 3880ab
Packit Service 3880ab
	ret = write(STDOUT_FILENO, n, n->nlmsg_len);
Packit Service 3880ab
	if ((ret > 0) && (ret != n->nlmsg_len)) {
Packit Service 3880ab
		fprintf(stderr, "Short write while saving nlmsg\n");
Packit Service 3880ab
		ret = -EIO;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	return ret == n->nlmsg_len ? 0 : ret;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int flush_rule(struct nlmsghdr *n, void *arg)
Packit Service 3880ab
{
Packit Service 3880ab
	struct rtnl_handle rth2;
Packit Service 3880ab
	struct fib_rule_hdr *frh = NLMSG_DATA(n);
Packit Service 3880ab
	int len = n->nlmsg_len;
Packit Service 3880ab
	struct rtattr *tb[FRA_MAX+1];
Packit Service 3880ab
	int host_len = -1;
Packit Service 3880ab
Packit Service 3880ab
	len -= NLMSG_LENGTH(sizeof(*frh));
Packit Service 3880ab
	if (len < 0)
Packit Service 3880ab
		return -1;
Packit Service 3880ab
Packit Service 3880ab
	parse_rtattr(tb, FRA_MAX, RTM_RTA(frh), len);
Packit Service 3880ab
Packit Service 3880ab
	host_len = af_bit_len(frh->family);
Packit Service 3880ab
	if (!filter_nlmsg(n, tb, host_len))
Packit Service 3880ab
		return 0;
Packit Service 3880ab
Packit Service 3880ab
	if (tb[FRA_PROTOCOL]) {
Packit Service 3880ab
		__u8 protocol = rta_getattr_u8(tb[FRA_PROTOCOL]);
Packit Service 3880ab
Packit Service 3880ab
		if ((filter.protocol ^ protocol) & filter.protocolmask)
Packit Service 3880ab
			return 0;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (tb[FRA_PRIORITY]) {
Packit Service 3880ab
		n->nlmsg_type = RTM_DELRULE;
Packit Service 3880ab
		n->nlmsg_flags = NLM_F_REQUEST;
Packit Service 3880ab
Packit Service 3880ab
		if (rtnl_open(&rth2, 0) < 0)
Packit Service 3880ab
			return -1;
Packit Service 3880ab
Packit Service 3880ab
		if (rtnl_talk(&rth2, n, NULL) < 0)
Packit Service 3880ab
			return -2;
Packit Service 3880ab
Packit Service 3880ab
		rtnl_close(&rth2;;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int iprule_list_flush_or_save(int argc, char **argv, int action)
Packit Service 3880ab
{
Packit Service 3880ab
	rtnl_filter_t filter_fn;
Packit Service 3880ab
	int af = preferred_family;
Packit Service 3880ab
Packit Service 3880ab
	if (af == AF_UNSPEC)
Packit Service 3880ab
		af = AF_INET;
Packit Service 3880ab
Packit Service 3880ab
	if (action == IPRULE_SAVE && argc > 0) {
Packit Service 3880ab
		fprintf(stderr, "\"ip rule save\" does not take any arguments.\n");
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	switch (action) {
Packit Service 3880ab
	case IPRULE_SAVE:
Packit Service 3880ab
		if (save_rule_prep())
Packit Service 3880ab
			return -1;
Packit Service 3880ab
		filter_fn = save_rule;
Packit Service 3880ab
		break;
Packit Service 3880ab
	case IPRULE_FLUSH:
Packit Service 3880ab
		filter_fn = flush_rule;
Packit Service 3880ab
		break;
Packit Service 3880ab
	default:
Packit Service 3880ab
		filter_fn = print_rule;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	memset(&filter, 0, sizeof(filter));
Packit Service 3880ab
Packit Service 3880ab
	while (argc > 0) {
Packit Service 3880ab
		if (matches(*argv, "preference") == 0 ||
Packit Service 3880ab
		    matches(*argv, "order") == 0 ||
Packit Service 3880ab
		    matches(*argv, "priority") == 0) {
Packit Service 3880ab
			__u32 pref;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_u32(&pref, *argv, 0))
Packit Service 3880ab
				invarg("preference value is invalid\n", *argv);
Packit Service 3880ab
			filter.pref = pref;
Packit Service 3880ab
			filter.prefmask = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "not") == 0) {
Packit Service 3880ab
			filter.not = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "tos") == 0) {
Packit Service 3880ab
			__u32 tos;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (rtnl_dsfield_a2n(&tos, *argv))
Packit Service 3880ab
				invarg("TOS value is invalid\n", *argv);
Packit Service 3880ab
			filter.tos = tos;
Packit Service 3880ab
			filter.tosmask = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "fwmark") == 0) {
Packit Service 3880ab
			char *slash;
Packit Service 3880ab
			__u32 fwmark, fwmask;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			slash = strchr(*argv, '/');
Packit Service 3880ab
			if (slash != NULL)
Packit Service 3880ab
				*slash = '\0';
Packit Service 3880ab
			if (get_u32(&fwmark, *argv, 0))
Packit Service 3880ab
				invarg("fwmark value is invalid\n", *argv);
Packit Service 3880ab
			filter.fwmark = fwmark;
Packit Service 3880ab
			if (slash) {
Packit Service 3880ab
				if (get_u32(&fwmask, slash+1, 0))
Packit Service 3880ab
					invarg("fwmask value is invalid\n",
Packit Service 3880ab
					       slash+1);
Packit Service 3880ab
				filter.fwmask = fwmask;
Packit Service 3880ab
			}
Packit Service 3880ab
		} else if (strcmp(*argv, "dev") == 0 ||
Packit Service 3880ab
			   strcmp(*argv, "iif") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_ifname(filter.iif, *argv))
Packit Service 3880ab
				invarg("\"iif\"/\"dev\" not a valid ifname", *argv);
Packit Service 3880ab
			filter.iifmask = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "oif") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_ifname(filter.oif, *argv))
Packit Service 3880ab
				invarg("\"oif\" not a valid ifname", *argv);
Packit Service 3880ab
			filter.oifmask = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "l3mdev") == 0) {
Packit Service 3880ab
			filter.l3mdev = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "uidrange") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			filter.uidrange = 1;
Packit Service 3880ab
			if (sscanf(*argv, "%u-%u",
Packit Service 3880ab
				   &filter.range.start,
Packit Service 3880ab
				   &filter.range.end) != 2)
Packit Service 3880ab
				invarg("invalid UID range\n", *argv);
Packit Service 3880ab
Packit Service 3880ab
		} else if (matches(*argv, "tun_id") == 0) {
Packit Service 3880ab
			__u64 tun_id;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_u64(&tun_id, *argv, 0))
Packit Service 3880ab
				invarg("\"tun_id\" value is invalid\n", *argv);
Packit Service 3880ab
			filter.tun_id = tun_id;
Packit Service 3880ab
		} else if (matches(*argv, "lookup") == 0 ||
Packit Service 3880ab
			   matches(*argv, "table") == 0) {
Packit Service 3880ab
			__u32 tid;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (rtnl_rttable_a2n(&tid, *argv))
Packit Service 3880ab
				invarg("table id value is invalid\n", *argv);
Packit Service 3880ab
			filter.tb = tid;
Packit Service 3880ab
		} else if (matches(*argv, "from") == 0 ||
Packit Service 3880ab
			   matches(*argv, "src") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_prefix(&filter.src, *argv, af))
Packit Service 3880ab
				invarg("from value is invalid\n", *argv);
Packit Service 3880ab
		} else if (matches(*argv, "protocol") == 0) {
Packit Service 3880ab
			__u32 prot;
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			filter.protocolmask = -1;
Packit Service 3880ab
			if (rtnl_rtprot_a2n(&prot, *argv)) {
Packit Service 3880ab
				if (strcmp(*argv, "all") != 0)
Packit Service 3880ab
					invarg("invalid \"protocol\"\n", *argv);
Packit Service 3880ab
				prot = 0;
Packit Service 3880ab
				filter.protocolmask = 0;
Packit Service 3880ab
			}
Packit Service 3880ab
			filter.protocol = prot;
Packit Service 3880ab
		} else if (strcmp(*argv, "ipproto") == 0) {
Packit Service 3880ab
			int ipproto;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ipproto = inet_proto_a2n(*argv);
Packit Service 3880ab
			if (ipproto < 0)
Packit Service 3880ab
				invarg("Invalid \"ipproto\" value\n", *argv);
Packit Service 3880ab
			filter.ipproto = ipproto;
Packit Service 3880ab
		} else if (strcmp(*argv, "sport") == 0) {
Packit Service 3880ab
			struct fib_rule_port_range r;
Packit Service 3880ab
			int ret;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ret = sscanf(*argv, "%hu-%hu", &r.start, &r.end);
Packit Service 3880ab
			if (ret == 1)
Packit Service 3880ab
				r.end = r.start;
Packit Service 3880ab
			else if (ret != 2)
Packit Service 3880ab
				invarg("invalid port range\n", *argv);
Packit Service 3880ab
			filter.sport = r;
Packit Service 3880ab
		} else if (strcmp(*argv, "dport") == 0) {
Packit Service 3880ab
			struct fib_rule_port_range r;
Packit Service 3880ab
			int ret;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ret = sscanf(*argv, "%hu-%hu", &r.start, &r.end);
Packit Service 3880ab
			if (ret == 1)
Packit Service 3880ab
				r.end = r.start;
Packit Service 3880ab
			else if (ret != 2)
Packit Service 3880ab
				invarg("invalid dport range\n", *argv);
Packit Service 3880ab
			filter.dport = r;
Packit Service 3880ab
		} else{
Packit Service 3880ab
			if (matches(*argv, "dst") == 0 ||
Packit Service 3880ab
			    matches(*argv, "to") == 0) {
Packit Service 3880ab
				NEXT_ARG();
Packit Service 3880ab
			}
Packit Service 3880ab
			if (get_prefix(&filter.dst, *argv, af))
Packit Service 3880ab
				invarg("to value is invalid\n", *argv);
Packit Service 3880ab
		}
Packit Service 3880ab
		argc--; argv++;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (rtnl_ruledump_req(&rth, af) < 0) {
Packit Service 3880ab
		perror("Cannot send dump request");
Packit Service 3880ab
		return 1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	new_json_obj(json);
Packit Service 3880ab
	if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) {
Packit Service 3880ab
		fprintf(stderr, "Dump terminated\n");
Packit Service 3880ab
		return 1;
Packit Service 3880ab
	}
Packit Service 3880ab
	delete_json_obj();
Packit Service 3880ab
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int rule_dump_check_magic(void)
Packit Service 3880ab
{
Packit Service 3880ab
	int ret;
Packit Service 3880ab
	__u32 magic = 0;
Packit Service 3880ab
Packit Service 3880ab
	if (isatty(STDIN_FILENO)) {
Packit Service 3880ab
		fprintf(stderr, "Can't restore rule dump from a terminal\n");
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	ret = fread(&magic, sizeof(magic), 1, stdin);
Packit Service 3880ab
	if (magic != rule_dump_magic) {
Packit Service 3880ab
		fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n",
Packit Service 3880ab
			ret, magic);
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int restore_handler(struct rtnl_ctrl_data *ctrl,
Packit Service 3880ab
			   struct nlmsghdr *n, void *arg)
Packit Service 3880ab
{
Packit Service 3880ab
	int ret;
Packit Service 3880ab
Packit Service 3880ab
	n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
Packit Service 3880ab
Packit Service 3880ab
	ll_init_map(&rth);
Packit Service 3880ab
Packit Service 3880ab
	ret = rtnl_talk(&rth, n, NULL);
Packit Service 3880ab
	if ((ret < 0) && (errno == EEXIST))
Packit Service 3880ab
		ret = 0;
Packit Service 3880ab
Packit Service 3880ab
	return ret;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
Packit Service 3880ab
static int iprule_restore(void)
Packit Service 3880ab
{
Packit Service 3880ab
	if (rule_dump_check_magic())
Packit Service 3880ab
		exit(-1);
Packit Service 3880ab
Packit Service 3880ab
	exit(rtnl_from_file(stdin, &restore_handler, NULL));
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
static int iprule_modify(int cmd, int argc, char **argv)
Packit Service 3880ab
{
Packit Service 3880ab
	int l3mdev_rule = 0;
Packit Service 3880ab
	int table_ok = 0;
Packit Service 3880ab
	__u32 tid = 0;
Packit Service 3880ab
	struct {
Packit Service 3880ab
		struct nlmsghdr	n;
Packit Service 3880ab
		struct fib_rule_hdr	frh;
Packit Service 3880ab
		char			buf[1024];
Packit Service 3880ab
	} req = {
Packit Service 3880ab
		.n.nlmsg_type = cmd,
Packit Service 3880ab
		.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct fib_rule_hdr)),
Packit Service 3880ab
		.n.nlmsg_flags = NLM_F_REQUEST,
Packit Service 3880ab
		.frh.family = preferred_family,
Packit Service 3880ab
		.frh.action = FR_ACT_UNSPEC,
Packit Service 3880ab
	};
Packit Service 3880ab
Packit Service 3880ab
	if (cmd == RTM_NEWRULE) {
Packit Service 3880ab
		if (argc == 0) {
Packit Service 3880ab
			fprintf(stderr,
Packit Service 3880ab
				"\"ip rule add\" requires arguments.\n");
Packit Service 3880ab
			return -1;
Packit Service 3880ab
		}
Packit Service 3880ab
		req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
Packit Service 3880ab
		req.frh.action = FR_ACT_TO_TBL;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (cmd == RTM_DELRULE && argc == 0) {
Packit Service 3880ab
		fprintf(stderr, "\"ip rule del\" requires arguments.\n");
Packit Service 3880ab
		return -1;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	while (argc > 0) {
Packit Service 3880ab
		if (strcmp(*argv, "not") == 0) {
Packit Service 3880ab
			req.frh.flags |= FIB_RULE_INVERT;
Packit Service 3880ab
		} else if (strcmp(*argv, "from") == 0) {
Packit Service 3880ab
			inet_prefix dst;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			get_prefix(&dst, *argv, req.frh.family);
Packit Service 3880ab
			req.frh.src_len = dst.bitlen;
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_SRC,
Packit Service 3880ab
				  &dst.data, dst.bytelen);
Packit Service 3880ab
		} else if (strcmp(*argv, "to") == 0) {
Packit Service 3880ab
			inet_prefix dst;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			get_prefix(&dst, *argv, req.frh.family);
Packit Service 3880ab
			req.frh.dst_len = dst.bitlen;
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_DST,
Packit Service 3880ab
				  &dst.data, dst.bytelen);
Packit Service 3880ab
		} else if (matches(*argv, "preference") == 0 ||
Packit Service 3880ab
			   matches(*argv, "order") == 0 ||
Packit Service 3880ab
			   matches(*argv, "priority") == 0) {
Packit Service 3880ab
			__u32 pref;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_u32(&pref, *argv, 0))
Packit Service 3880ab
				invarg("preference value is invalid\n", *argv);
Packit Service 3880ab
			addattr32(&req.n, sizeof(req), FRA_PRIORITY, pref);
Packit Service 3880ab
		} else if (strcmp(*argv, "tos") == 0 ||
Packit Service 3880ab
			   matches(*argv, "dsfield") == 0) {
Packit Service 3880ab
			__u32 tos;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (rtnl_dsfield_a2n(&tos, *argv))
Packit Service 3880ab
				invarg("TOS value is invalid\n", *argv);
Packit Service 3880ab
			req.frh.tos = tos;
Packit Service 3880ab
		} else if (strcmp(*argv, "fwmark") == 0) {
Packit Service 3880ab
			char *slash;
Packit Service 3880ab
			__u32 fwmark, fwmask;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
Packit Service 3880ab
			slash = strchr(*argv, '/');
Packit Service 3880ab
			if (slash != NULL)
Packit Service 3880ab
				*slash = '\0';
Packit Service 3880ab
			if (get_u32(&fwmark, *argv, 0))
Packit Service 3880ab
				invarg("fwmark value is invalid\n", *argv);
Packit Service 3880ab
			addattr32(&req.n, sizeof(req), FRA_FWMARK, fwmark);
Packit Service 3880ab
			if (slash) {
Packit Service 3880ab
				if (get_u32(&fwmask, slash+1, 0))
Packit Service 3880ab
					invarg("fwmask value is invalid\n",
Packit Service 3880ab
					       slash+1);
Packit Service 3880ab
				addattr32(&req.n, sizeof(req),
Packit Service 3880ab
					  FRA_FWMASK, fwmask);
Packit Service 3880ab
			}
Packit Service 3880ab
		} else if (matches(*argv, "realms") == 0) {
Packit Service 3880ab
			__u32 realm;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_rt_realms_or_raw(&realm, *argv))
Packit Service 3880ab
				invarg("invalid realms\n", *argv);
Packit Service 3880ab
			addattr32(&req.n, sizeof(req), FRA_FLOW, realm);
Packit Service 3880ab
		} else if (matches(*argv, "protocol") == 0) {
Packit Service 3880ab
			__u32 proto;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (rtnl_rtprot_a2n(&proto, *argv))
Packit Service 3880ab
				invarg("\"protocol\" value is invalid\n", *argv);
Packit Service 3880ab
			addattr8(&req.n, sizeof(req), FRA_PROTOCOL, proto);
Packit Service 3880ab
		} else if (matches(*argv, "tun_id") == 0) {
Packit Service 3880ab
			__u64 tun_id;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_be64(&tun_id, *argv, 0))
Packit Service 3880ab
				invarg("\"tun_id\" value is invalid\n", *argv);
Packit Service 3880ab
			addattr64(&req.n, sizeof(req), FRA_TUN_ID, tun_id);
Packit Service 3880ab
		} else if (matches(*argv, "table") == 0 ||
Packit Service 3880ab
			   strcmp(*argv, "lookup") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (rtnl_rttable_a2n(&tid, *argv))
Packit Service 3880ab
				invarg("invalid table ID\n", *argv);
Packit Service 3880ab
			if (tid < 256)
Packit Service 3880ab
				req.frh.table = tid;
Packit Service 3880ab
			else {
Packit Service 3880ab
				req.frh.table = RT_TABLE_UNSPEC;
Packit Service 3880ab
				addattr32(&req.n, sizeof(req), FRA_TABLE, tid);
Packit Service 3880ab
			}
Packit Service 3880ab
			table_ok = 1;
Packit Service 3880ab
		} else if (matches(*argv, "suppress_prefixlength") == 0 ||
Packit Service 3880ab
			   strcmp(*argv, "sup_pl") == 0) {
Packit Service 3880ab
			int pl;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (get_s32(&pl, *argv, 0) || pl < 0)
Packit Service 3880ab
				invarg("suppress_prefixlength value is invalid\n",
Packit Service 3880ab
				       *argv);
Packit Service 3880ab
			addattr32(&req.n, sizeof(req),
Packit Service 3880ab
				  FRA_SUPPRESS_PREFIXLEN, pl);
Packit Service 3880ab
		} else if (matches(*argv, "suppress_ifgroup") == 0 ||
Packit Service 3880ab
			   strcmp(*argv, "sup_group") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			int group;
Packit Service 3880ab
Packit Service 3880ab
			if (rtnl_group_a2n(&group, *argv))
Packit Service 3880ab
				invarg("Invalid \"suppress_ifgroup\" value\n",
Packit Service 3880ab
				       *argv);
Packit Service 3880ab
			addattr32(&req.n, sizeof(req),
Packit Service 3880ab
				  FRA_SUPPRESS_IFGROUP, group);
Packit Service 3880ab
		} else if (strcmp(*argv, "dev") == 0 ||
Packit Service 3880ab
			   strcmp(*argv, "iif") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (check_ifname(*argv))
Packit Service 3880ab
				invarg("\"iif\"/\"dev\" not a valid ifname", *argv);
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_IFNAME,
Packit Service 3880ab
				  *argv, strlen(*argv)+1);
Packit Service 3880ab
		} else if (strcmp(*argv, "oif") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (check_ifname(*argv))
Packit Service 3880ab
				invarg("\"oif\" not a valid ifname", *argv);
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_OIFNAME,
Packit Service 3880ab
				  *argv, strlen(*argv)+1);
Packit Service 3880ab
		} else if (strcmp(*argv, "l3mdev") == 0) {
Packit Service 3880ab
			addattr8(&req.n, sizeof(req), FRA_L3MDEV, 1);
Packit Service 3880ab
			table_ok = 1;
Packit Service 3880ab
			l3mdev_rule = 1;
Packit Service 3880ab
		} else if (strcmp(*argv, "uidrange") == 0) {
Packit Service 3880ab
			struct fib_rule_uid_range r;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			if (sscanf(*argv, "%u-%u", &r.start, &r.end) != 2)
Packit Service 3880ab
				invarg("invalid UID range\n", *argv);
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_UID_RANGE, &r,
Packit Service 3880ab
				  sizeof(r));
Packit Service 3880ab
		} else if (strcmp(*argv, "nat") == 0 ||
Packit Service 3880ab
			   matches(*argv, "map-to") == 0) {
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			fprintf(stderr, "Warning: route NAT is deprecated\n");
Packit Service 3880ab
			addattr32(&req.n, sizeof(req), RTA_GATEWAY,
Packit Service 3880ab
				  get_addr32(*argv));
Packit Service 3880ab
			req.frh.action = RTN_NAT;
Packit Service 3880ab
		} else if (strcmp(*argv, "ipproto") == 0) {
Packit Service 3880ab
			int ipproto;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ipproto = inet_proto_a2n(*argv);
Packit Service 3880ab
			if (ipproto < 0)
Packit Service 3880ab
				invarg("Invalid \"ipproto\" value\n",
Packit Service 3880ab
				       *argv);
Packit Service 3880ab
			addattr8(&req.n, sizeof(req), FRA_IP_PROTO, ipproto);
Packit Service 3880ab
		} else if (strcmp(*argv, "sport") == 0) {
Packit Service 3880ab
			struct fib_rule_port_range r;
Packit Service 3880ab
			int ret = 0;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ret = sscanf(*argv, "%hu-%hu", &r.start, &r.end);
Packit Service 3880ab
			if (ret == 1)
Packit Service 3880ab
				r.end = r.start;
Packit Service 3880ab
			else if (ret != 2)
Packit Service 3880ab
				invarg("invalid port range\n", *argv);
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_SPORT_RANGE, &r,
Packit Service 3880ab
				  sizeof(r));
Packit Service 3880ab
		} else if (strcmp(*argv, "dport") == 0) {
Packit Service 3880ab
			struct fib_rule_port_range r;
Packit Service 3880ab
			int ret = 0;
Packit Service 3880ab
Packit Service 3880ab
			NEXT_ARG();
Packit Service 3880ab
			ret = sscanf(*argv, "%hu-%hu", &r.start, &r.end);
Packit Service 3880ab
			if (ret == 1)
Packit Service 3880ab
				r.end = r.start;
Packit Service 3880ab
			else if (ret != 2)
Packit Service 3880ab
				invarg("invalid dport range\n", *argv);
Packit Service 3880ab
			addattr_l(&req.n, sizeof(req), FRA_DPORT_RANGE, &r,
Packit Service 3880ab
				  sizeof(r));
Packit Service 3880ab
		} else {
Packit Service 3880ab
			int type;
Packit Service 3880ab
Packit Service 3880ab
			if (strcmp(*argv, "type") == 0)
Packit Service 3880ab
				NEXT_ARG();
Packit Service 3880ab
Packit Service 3880ab
			if (matches(*argv, "help") == 0)
Packit Service 3880ab
				usage();
Packit Service 3880ab
			else if (matches(*argv, "goto") == 0) {
Packit Service 3880ab
				__u32 target;
Packit Service 3880ab
Packit Service 3880ab
				type = FR_ACT_GOTO;
Packit Service 3880ab
				NEXT_ARG();
Packit Service 3880ab
				if (get_u32(&target, *argv, 0))
Packit Service 3880ab
					invarg("invalid target\n", *argv);
Packit Service 3880ab
				addattr32(&req.n, sizeof(req),
Packit Service 3880ab
					  FRA_GOTO, target);
Packit Service 3880ab
			} else if (matches(*argv, "nop") == 0)
Packit Service 3880ab
				type = FR_ACT_NOP;
Packit Service 3880ab
			else if (rtnl_rtntype_a2n(&type, *argv))
Packit Service 3880ab
				invarg("Failed to parse rule type", *argv);
Packit Service 3880ab
			req.frh.action = type;
Packit Service 3880ab
			table_ok = 1;
Packit Service 3880ab
		}
Packit Service 3880ab
		argc--;
Packit Service 3880ab
		argv++;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (l3mdev_rule && tid != 0) {
Packit Service 3880ab
		fprintf(stderr,
Packit Service 3880ab
			"table can not be specified for l3mdev rules\n");
Packit Service 3880ab
		return -EINVAL;
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	if (req.frh.family == AF_UNSPEC)
Packit Service 3880ab
		req.frh.family = AF_INET;
Packit Service 3880ab
Packit Service 3880ab
	if (!table_ok && cmd == RTM_NEWRULE)
Packit Service 3880ab
		req.frh.table = RT_TABLE_MAIN;
Packit Service 3880ab
Packit Service 3880ab
	if (rtnl_talk(&rth, &req.n, NULL) < 0)
Packit Service 3880ab
		return -2;
Packit Service 3880ab
Packit Service 3880ab
	return 0;
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
int do_iprule(int argc, char **argv)
Packit Service 3880ab
{
Packit Service 3880ab
	if (argc < 1) {
Packit Service 3880ab
		return iprule_list_flush_or_save(0, NULL, IPRULE_LIST);
Packit Service 3880ab
	} else if (matches(argv[0], "list") == 0 ||
Packit Service 3880ab
		   matches(argv[0], "lst") == 0 ||
Packit Service 3880ab
		   matches(argv[0], "show") == 0) {
Packit Service 3880ab
		return iprule_list_flush_or_save(argc-1, argv+1, IPRULE_LIST);
Packit Service 3880ab
	} else if (matches(argv[0], "save") == 0) {
Packit Service 3880ab
		return iprule_list_flush_or_save(argc-1, argv+1, IPRULE_SAVE);
Packit Service 3880ab
	} else if (matches(argv[0], "restore") == 0) {
Packit Service 3880ab
		return iprule_restore();
Packit Service 3880ab
	} else if (matches(argv[0], "add") == 0) {
Packit Service 3880ab
		return iprule_modify(RTM_NEWRULE, argc-1, argv+1);
Packit Service 3880ab
	} else if (matches(argv[0], "delete") == 0) {
Packit Service 3880ab
		return iprule_modify(RTM_DELRULE, argc-1, argv+1);
Packit Service 3880ab
	} else if (matches(argv[0], "flush") == 0) {
Packit Service 3880ab
		return iprule_list_flush_or_save(argc-1, argv+1, IPRULE_FLUSH);
Packit Service 3880ab
	} else if (matches(argv[0], "help") == 0)
Packit Service 3880ab
		usage();
Packit Service 3880ab
Packit Service 3880ab
	fprintf(stderr,
Packit Service 3880ab
		"Command \"%s\" is unknown, try \"ip rule help\".\n", *argv);
Packit Service 3880ab
	exit(-1);
Packit Service 3880ab
}
Packit Service 3880ab
Packit Service 3880ab
int do_multirule(int argc, char **argv)
Packit Service 3880ab
{
Packit Service 3880ab
	switch (preferred_family) {
Packit Service 3880ab
	case AF_UNSPEC:
Packit Service 3880ab
	case AF_INET:
Packit Service 3880ab
		preferred_family = RTNL_FAMILY_IPMR;
Packit Service 3880ab
		break;
Packit Service 3880ab
	case AF_INET6:
Packit Service 3880ab
		preferred_family = RTNL_FAMILY_IP6MR;
Packit Service 3880ab
		break;
Packit Service 3880ab
	case RTNL_FAMILY_IPMR:
Packit Service 3880ab
	case RTNL_FAMILY_IP6MR:
Packit Service 3880ab
		break;
Packit Service 3880ab
	default:
Packit Service 3880ab
		fprintf(stderr,
Packit Service 3880ab
			"Multicast rules are only supported for IPv4/IPv6, was: %i\n",
Packit Service 3880ab
			preferred_family);
Packit Service 3880ab
		exit(-1);
Packit Service 3880ab
	}
Packit Service 3880ab
Packit Service 3880ab
	return do_iprule(argc, argv);
Packit Service 3880ab
}