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.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <netinet/ip.h>
20 #include <arpa/inet.h>
23 #include <linux/fib_rules.h>
28 #include "ip_common.h"
29 #include "json_print.h"
37 extern struct rtnl_handle rth
;
39 static void usage(void) __attribute__((noreturn
));
41 static void usage(void)
44 "Usage: ip rule { add | del } SELECTOR ACTION\n"
45 " ip rule { flush | save | restore }\n"
46 " ip rule [ list [ SELECTOR ]]\n"
47 "SELECTOR := [ not ] [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK[/MASK] ]\n"
48 " [ iif STRING ] [ oif STRING ] [ pref NUMBER ] [ l3mdev ]\n"
49 " [ uidrange NUMBER-NUMBER ]\n"
50 " [ ipproto PROTOCOL ]\n"
51 " [ sport [ NUMBER | NUMBER-NUMBER ]\n"
52 " [ dport [ NUMBER | NUMBER-NUMBER ] ]\n"
53 "ACTION := [ table TABLE_ID ]\n"
54 " [ protocol PROTO ]\n"
56 " [ realms [SRCREALM/]DSTREALM ]\n"
59 "SUPPRESSOR := [ suppress_prefixlength NUMBER ]\n"
60 " [ suppress_ifgroup DEVGROUP ]\n"
61 "TABLE_ID := [ local | main | default | NUMBER ]\n");
69 int iifmask
, oifmask
, uidrange
;
71 unsigned int tos
, tosmask
;
72 unsigned int pref
, prefmask
;
73 unsigned int fwmark
, fwmask
;
77 struct fib_rule_uid_range range
;
82 struct fib_rule_port_range sport
;
83 struct fib_rule_port_range dport
;
87 static inline int frh_get_table(struct fib_rule_hdr
*frh
, struct rtattr
**tb
)
89 __u32 table
= frh
->table
;
91 table
= rta_getattr_u32(tb
[RTA_TABLE
]);
95 static bool filter_nlmsg(struct nlmsghdr
*n
, struct rtattr
**tb
, int host_len
)
97 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
100 if (preferred_family
!= AF_UNSPEC
&& frh
->family
!= preferred_family
)
103 if (filter
.prefmask
&&
104 filter
.pref
^ (tb
[FRA_PRIORITY
] ? rta_getattr_u32(tb
[FRA_PRIORITY
]) : 0))
106 if (filter
.not && !(frh
->flags
& FIB_RULE_INVERT
))
109 if (filter
.src
.family
) {
110 inet_prefix
*f_src
= &filter
.src
;
112 if (f_src
->family
!= frh
->family
||
113 f_src
->bitlen
> frh
->src_len
)
116 if (inet_addr_match_rta(f_src
, tb
[FRA_SRC
]))
120 if (filter
.dst
.family
) {
121 inet_prefix
*f_dst
= &filter
.dst
;
123 if (f_dst
->family
!= frh
->family
||
124 f_dst
->bitlen
> frh
->dst_len
)
127 if (inet_addr_match_rta(f_dst
, tb
[FRA_DST
]))
131 if (filter
.tosmask
&& filter
.tos
^ frh
->tos
)
138 mark
= rta_getattr_u32(tb
[FRA_FWMARK
]);
139 if (filter
.fwmark
^ mark
)
146 mask
= rta_getattr_u32(tb
[FRA_FWMASK
]);
147 if (filter
.fwmask
^ mask
)
151 if (filter
.iifmask
) {
152 if (tb
[FRA_IFNAME
]) {
153 if (strcmp(filter
.iif
, rta_getattr_str(tb
[FRA_IFNAME
])) != 0)
160 if (filter
.oifmask
) {
161 if (tb
[FRA_OIFNAME
]) {
162 if (strcmp(filter
.oif
, rta_getattr_str(tb
[FRA_OIFNAME
])) != 0)
169 if (filter
.l3mdev
&& !(tb
[FRA_L3MDEV
] && rta_getattr_u8(tb
[FRA_L3MDEV
])))
172 if (filter
.uidrange
) {
173 struct fib_rule_uid_range
*r
= RTA_DATA(tb
[FRA_UID_RANGE
]);
175 if (!tb
[FRA_UID_RANGE
] ||
176 r
->start
!= filter
.range
.start
||
177 r
->end
!= filter
.range
.end
)
181 if (filter
.ipproto
) {
184 if (tb
[FRA_IP_PROTO
])
185 ipproto
= rta_getattr_u8(tb
[FRA_IP_PROTO
]);
186 if (filter
.ipproto
!= ipproto
)
190 if (filter
.sport
.start
) {
191 const struct fib_rule_port_range
*r
;
193 if (!tb
[FRA_SPORT_RANGE
])
196 r
= RTA_DATA(tb
[FRA_SPORT_RANGE
]);
197 if (r
->start
!= filter
.sport
.start
||
198 r
->end
!= filter
.sport
.end
)
202 if (filter
.dport
.start
) {
203 const struct fib_rule_port_range
*r
;
205 if (!tb
[FRA_DPORT_RANGE
])
208 r
= RTA_DATA(tb
[FRA_DPORT_RANGE
]);
209 if (r
->start
!= filter
.dport
.start
||
210 r
->end
!= filter
.dport
.end
)
217 if (tb
[FRA_TUN_ID
]) {
218 tun_id
= ntohll(rta_getattr_u64(tb
[FRA_TUN_ID
]));
219 if (filter
.tun_id
!= tun_id
)
226 table
= frh_get_table(frh
, tb
);
227 if (filter
.tb
> 0 && filter
.tb
^ table
)
233 int print_rule(struct nlmsghdr
*n
, void *arg
)
236 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
237 int len
= n
->nlmsg_len
;
239 __u32 table
, prio
= 0;
240 struct rtattr
*tb
[FRA_MAX
+1];
243 if (n
->nlmsg_type
!= RTM_NEWRULE
&& n
->nlmsg_type
!= RTM_DELRULE
)
246 len
-= NLMSG_LENGTH(sizeof(*frh
));
250 parse_rtattr(tb
, FRA_MAX
, RTM_RTA(frh
), len
);
252 host_len
= af_bit_len(frh
->family
);
254 if (!filter_nlmsg(n
, tb
, host_len
))
257 open_json_object(NULL
);
258 if (n
->nlmsg_type
== RTM_DELRULE
)
259 print_bool(PRINT_ANY
, "deleted", "Deleted ", true);
261 if (tb
[FRA_PRIORITY
])
262 prio
= rta_getattr_u32(tb
[FRA_PRIORITY
]);
264 print_uint(PRINT_ANY
, "priority", "%u:\t", prio
);
266 if (frh
->flags
& FIB_RULE_INVERT
)
267 print_null(PRINT_ANY
, "not", "not ", NULL
);
270 const char *src
= rt_addr_n2a_rta(frh
->family
, tb
[FRA_SRC
]);
272 print_string(PRINT_FP
, NULL
, "from ", NULL
);
273 print_color_string(PRINT_ANY
, ifa_family_color(frh
->family
),
275 if (frh
->src_len
!= host_len
)
276 print_uint(PRINT_ANY
, "srclen", "/%u ", frh
->src_len
);
278 print_string(PRINT_FP
, NULL
, " ", NULL
);
279 } else if (frh
->src_len
) {
280 print_string(PRINT_ANY
, "src", "from %s", "0");
281 print_uint(PRINT_ANY
, "srclen", "/%u ", frh
->src_len
);
283 print_string(PRINT_ANY
, "src", "from %s ", "all");
287 const char *dst
= rt_addr_n2a_rta(frh
->family
, tb
[FRA_DST
]);
289 print_string(PRINT_FP
, NULL
, "to ", NULL
);
290 print_color_string(PRINT_ANY
, ifa_family_color(frh
->family
),
292 if (frh
->dst_len
!= host_len
)
293 print_uint(PRINT_ANY
, "dstlen", "/%u ", frh
->dst_len
);
295 print_string(PRINT_FP
, NULL
, " ", NULL
);
296 } else if (frh
->dst_len
) {
297 print_string(PRINT_ANY
, "dst", "to %s", "0");
298 print_uint(PRINT_ANY
, "dstlen", "/%u ", frh
->dst_len
);
302 print_string(PRINT_ANY
, "tos",
304 rtnl_dsfield_n2a(frh
->tos
, b1
, sizeof(b1
)));
307 if (tb
[FRA_FWMARK
] || tb
[FRA_FWMASK
]) {
308 __u32 mark
= 0, mask
= 0;
311 mark
= rta_getattr_u32(tb
[FRA_FWMARK
]);
313 if (tb
[FRA_FWMASK
] &&
314 (mask
= rta_getattr_u32(tb
[FRA_FWMASK
])) != 0xFFFFFFFF) {
315 print_0xhex(PRINT_ANY
, "fwmark", "fwmark %#llx", mark
);
316 print_0xhex(PRINT_ANY
, "fwmask", "/%#llx ", mask
);
318 print_0xhex(PRINT_ANY
, "fwmark", "fwmark %#llx ", mark
);
322 if (tb
[FRA_IFNAME
]) {
323 if (!is_json_context())
325 print_color_string(PRINT_ANY
, COLOR_IFNAME
,
327 rta_getattr_str(tb
[FRA_IFNAME
]));
329 if (frh
->flags
& FIB_RULE_IIF_DETACHED
)
330 print_null(PRINT_ANY
, "iif_detached", "[detached] ",
334 if (tb
[FRA_OIFNAME
]) {
335 if (!is_json_context())
338 print_color_string(PRINT_ANY
, COLOR_IFNAME
, "oif", "%s ",
339 rta_getattr_str(tb
[FRA_OIFNAME
]));
341 if (frh
->flags
& FIB_RULE_OIF_DETACHED
)
342 print_null(PRINT_ANY
, "oif_detached", "[detached] ",
346 if (tb
[FRA_L3MDEV
]) {
347 __u8 mdev
= rta_getattr_u8(tb
[FRA_L3MDEV
]);
350 print_null(PRINT_ANY
, "l3mdev",
351 "lookup [l3mdev-table] ", NULL
);
354 if (tb
[FRA_UID_RANGE
]) {
355 struct fib_rule_uid_range
*r
= RTA_DATA(tb
[FRA_UID_RANGE
]);
357 print_uint(PRINT_ANY
, "uid_start", "uidrange %u", r
->start
);
358 print_uint(PRINT_ANY
, "uid_end", "-%u ", r
->end
);
361 if (tb
[FRA_IP_PROTO
]) {
363 print_string(PRINT_ANY
, "ipproto", "ipproto %s ",
364 inet_proto_n2a(rta_getattr_u8(tb
[FRA_IP_PROTO
]),
365 pbuf
, sizeof(pbuf
)));
368 if (tb
[FRA_SPORT_RANGE
]) {
369 struct fib_rule_port_range
*r
= RTA_DATA(tb
[FRA_SPORT_RANGE
]);
371 if (r
->start
== r
->end
) {
372 print_uint(PRINT_ANY
, "sport", "sport %u ", r
->start
);
374 print_uint(PRINT_ANY
, "sport_start", "sport %u",
376 print_uint(PRINT_ANY
, "sport_end", "-%u ", r
->end
);
380 if (tb
[FRA_DPORT_RANGE
]) {
381 struct fib_rule_port_range
*r
= RTA_DATA(tb
[FRA_DPORT_RANGE
]);
383 if (r
->start
== r
->end
) {
384 print_uint(PRINT_ANY
, "dport", "dport %u ", r
->start
);
386 print_uint(PRINT_ANY
, "dport_start", "dport %u",
388 print_uint(PRINT_ANY
, "dport_end", "-%u ", r
->end
);
392 if (tb
[FRA_TUN_ID
]) {
393 __u64 tun_id
= ntohll(rta_getattr_u64(tb
[FRA_TUN_ID
]));
395 print_u64(PRINT_ANY
, "tun_id", "tun_id %llu ", tun_id
);
398 table
= frh_get_table(frh
, tb
);
400 print_string(PRINT_ANY
, "table",
402 rtnl_rttable_n2a(table
, b1
, sizeof(b1
)));
404 if (tb
[FRA_SUPPRESS_PREFIXLEN
]) {
405 int pl
= rta_getattr_u32(tb
[FRA_SUPPRESS_PREFIXLEN
]);
408 print_int(PRINT_ANY
, "suppress_prefixlen",
409 "suppress_prefixlength %d ", pl
);
412 if (tb
[FRA_SUPPRESS_IFGROUP
]) {
413 int group
= rta_getattr_u32(tb
[FRA_SUPPRESS_IFGROUP
]);
417 = rtnl_group_n2a(group
, b1
, sizeof(b1
));
419 print_string(PRINT_ANY
, "suppress_ifgroup",
420 "suppress_ifgroup %s ", grname
);
426 __u32 to
= rta_getattr_u32(tb
[FRA_FLOW
]);
431 print_string(PRINT_ANY
,
432 "flow_from", "realms %s/",
433 rtnl_rtrealm_n2a(from
, b1
, sizeof(b1
)));
435 print_string(PRINT_ANY
, "flow_to", "%s ",
436 rtnl_rtrealm_n2a(to
, b1
, sizeof(b1
)));
439 if (frh
->action
== RTN_NAT
) {
440 if (tb
[RTA_GATEWAY
]) {
443 gateway
= format_host_rta(frh
->family
, tb
[RTA_GATEWAY
]);
445 print_string(PRINT_ANY
, "nat_gateway",
446 "map-to %s ", gateway
);
448 print_null(PRINT_ANY
, "masquerade", "masquerade", NULL
);
450 } else if (frh
->action
== FR_ACT_GOTO
) {
452 print_uint(PRINT_ANY
, "goto", "goto %u",
453 rta_getattr_u32(tb
[FRA_GOTO
]));
455 print_string(PRINT_ANY
, "goto", "goto %s", "none");
457 if (frh
->flags
& FIB_RULE_UNRESOLVED
)
458 print_null(PRINT_ANY
, "unresolved", "unresolved", NULL
);
459 } else if (frh
->action
== FR_ACT_NOP
) {
460 print_null(PRINT_ANY
, "nop", "nop", NULL
);
461 } else if (frh
->action
!= FR_ACT_TO_TBL
) {
462 print_string(PRINT_ANY
, "action", "%s",
463 rtnl_rtntype_n2a(frh
->action
, b1
, sizeof(b1
)));
466 if (tb
[FRA_PROTOCOL
]) {
467 __u8 protocol
= rta_getattr_u8(tb
[FRA_PROTOCOL
]);
469 if ((protocol
&& protocol
!= RTPROT_KERNEL
) || show_details
> 0) {
470 print_string(PRINT_ANY
, "protocol", " proto %s ",
471 rtnl_rtprot_n2a(protocol
, b1
, sizeof(b1
)));
474 print_string(PRINT_FP
, NULL
, "\n", "");
480 static __u32 rule_dump_magic
= 0x71706986;
482 static int save_rule_prep(void)
486 if (isatty(STDOUT_FILENO
)) {
487 fprintf(stderr
, "Not sending a binary stream to stdout\n");
491 ret
= write(STDOUT_FILENO
, &rule_dump_magic
, sizeof(rule_dump_magic
));
492 if (ret
!= sizeof(rule_dump_magic
)) {
493 fprintf(stderr
, "Can't write magic to dump file\n");
500 static int save_rule(struct nlmsghdr
*n
, void *arg
)
504 ret
= write(STDOUT_FILENO
, n
, n
->nlmsg_len
);
505 if ((ret
> 0) && (ret
!= n
->nlmsg_len
)) {
506 fprintf(stderr
, "Short write while saving nlmsg\n");
510 return ret
== n
->nlmsg_len
? 0 : ret
;
513 static int flush_rule(struct nlmsghdr
*n
, void *arg
)
515 struct rtnl_handle rth2
;
516 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
517 int len
= n
->nlmsg_len
;
518 struct rtattr
*tb
[FRA_MAX
+1];
521 len
-= NLMSG_LENGTH(sizeof(*frh
));
525 parse_rtattr(tb
, FRA_MAX
, RTM_RTA(frh
), len
);
527 host_len
= af_bit_len(frh
->family
);
528 if (!filter_nlmsg(n
, tb
, host_len
))
531 if (tb
[FRA_PROTOCOL
]) {
532 __u8 protocol
= rta_getattr_u8(tb
[FRA_PROTOCOL
]);
534 if ((filter
.protocol
^ protocol
) & filter
.protocolmask
)
538 if (tb
[FRA_PRIORITY
]) {
539 n
->nlmsg_type
= RTM_DELRULE
;
540 n
->nlmsg_flags
= NLM_F_REQUEST
;
542 if (rtnl_open(&rth2
, 0) < 0)
545 if (rtnl_talk(&rth2
, n
, NULL
) < 0)
554 static int iprule_list_flush_or_save(int argc
, char **argv
, int action
)
556 rtnl_filter_t filter_fn
;
557 int af
= preferred_family
;
562 if (action
== IPRULE_SAVE
&& argc
> 0) {
563 fprintf(stderr
, "\"ip rule save\" does not take any arguments.\n");
569 if (save_rule_prep())
571 filter_fn
= save_rule
;
574 filter_fn
= flush_rule
;
577 filter_fn
= print_rule
;
580 memset(&filter
, 0, sizeof(filter
));
583 if (matches(*argv
, "preference") == 0 ||
584 matches(*argv
, "order") == 0 ||
585 matches(*argv
, "priority") == 0) {
589 if (get_u32(&pref
, *argv
, 0))
590 invarg("preference value is invalid\n", *argv
);
593 } else if (strcmp(*argv
, "not") == 0) {
595 } else if (strcmp(*argv
, "tos") == 0) {
599 if (rtnl_dsfield_a2n(&tos
, *argv
))
600 invarg("TOS value is invalid\n", *argv
);
603 } else if (strcmp(*argv
, "fwmark") == 0) {
605 __u32 fwmark
, fwmask
;
608 slash
= strchr(*argv
, '/');
611 if (get_u32(&fwmark
, *argv
, 0))
612 invarg("fwmark value is invalid\n", *argv
);
613 filter
.fwmark
= fwmark
;
615 if (get_u32(&fwmask
, slash
+1, 0))
616 invarg("fwmask value is invalid\n",
618 filter
.fwmask
= fwmask
;
620 } else if (strcmp(*argv
, "dev") == 0 ||
621 strcmp(*argv
, "iif") == 0) {
623 if (get_ifname(filter
.iif
, *argv
))
624 invarg("\"iif\"/\"dev\" not a valid ifname", *argv
);
626 } else if (strcmp(*argv
, "oif") == 0) {
628 if (get_ifname(filter
.oif
, *argv
))
629 invarg("\"oif\" not a valid ifname", *argv
);
631 } else if (strcmp(*argv
, "l3mdev") == 0) {
633 } else if (strcmp(*argv
, "uidrange") == 0) {
636 if (sscanf(*argv
, "%u-%u",
638 &filter
.range
.end
) != 2)
639 invarg("invalid UID range\n", *argv
);
641 } else if (matches(*argv
, "tun_id") == 0) {
645 if (get_u64(&tun_id
, *argv
, 0))
646 invarg("\"tun_id\" value is invalid\n", *argv
);
647 filter
.tun_id
= tun_id
;
648 } else if (matches(*argv
, "lookup") == 0 ||
649 matches(*argv
, "table") == 0) {
653 if (rtnl_rttable_a2n(&tid
, *argv
))
654 invarg("table id value is invalid\n", *argv
);
656 } else if (matches(*argv
, "from") == 0 ||
657 matches(*argv
, "src") == 0) {
659 if (get_prefix(&filter
.src
, *argv
, af
))
660 invarg("from value is invalid\n", *argv
);
661 } else if (matches(*argv
, "protocol") == 0) {
664 filter
.protocolmask
= -1;
665 if (rtnl_rtprot_a2n(&prot
, *argv
)) {
666 if (strcmp(*argv
, "all") != 0)
667 invarg("invalid \"protocol\"\n", *argv
);
669 filter
.protocolmask
= 0;
671 filter
.protocol
= prot
;
672 } else if (strcmp(*argv
, "ipproto") == 0) {
676 ipproto
= inet_proto_a2n(*argv
);
678 invarg("Invalid \"ipproto\" value\n", *argv
);
679 filter
.ipproto
= ipproto
;
680 } else if (strcmp(*argv
, "sport") == 0) {
681 struct fib_rule_port_range r
;
685 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
689 invarg("invalid port range\n", *argv
);
691 } else if (strcmp(*argv
, "dport") == 0) {
692 struct fib_rule_port_range r
;
696 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
700 invarg("invalid dport range\n", *argv
);
703 if (matches(*argv
, "dst") == 0 ||
704 matches(*argv
, "to") == 0) {
707 if (get_prefix(&filter
.dst
, *argv
, af
))
708 invarg("to value is invalid\n", *argv
);
713 if (rtnl_ruledump_req(&rth
, af
) < 0) {
714 perror("Cannot send dump request");
719 if (rtnl_dump_filter(&rth
, filter_fn
, stdout
) < 0) {
720 fprintf(stderr
, "Dump terminated\n");
728 static int rule_dump_check_magic(void)
733 if (isatty(STDIN_FILENO
)) {
734 fprintf(stderr
, "Can't restore rule dump from a terminal\n");
738 ret
= fread(&magic
, sizeof(magic
), 1, stdin
);
739 if (magic
!= rule_dump_magic
) {
740 fprintf(stderr
, "Magic mismatch (%d elems, %x magic)\n",
748 static int restore_handler(struct rtnl_ctrl_data
*ctrl
,
749 struct nlmsghdr
*n
, void *arg
)
753 n
->nlmsg_flags
|= NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_ACK
;
757 ret
= rtnl_talk(&rth
, n
, NULL
);
758 if ((ret
< 0) && (errno
== EEXIST
))
765 static int iprule_restore(void)
767 if (rule_dump_check_magic())
770 exit(rtnl_from_file(stdin
, &restore_handler
, NULL
));
773 static int iprule_modify(int cmd
, int argc
, char **argv
)
780 struct fib_rule_hdr frh
;
784 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct fib_rule_hdr
)),
785 .n
.nlmsg_flags
= NLM_F_REQUEST
,
786 .frh
.family
= preferred_family
,
787 .frh
.action
= FR_ACT_UNSPEC
,
790 if (cmd
== RTM_NEWRULE
) {
793 "\"ip rule add\" requires arguments.\n");
796 req
.n
.nlmsg_flags
|= NLM_F_CREATE
|NLM_F_EXCL
;
797 req
.frh
.action
= FR_ACT_TO_TBL
;
800 if (cmd
== RTM_DELRULE
&& argc
== 0) {
801 fprintf(stderr
, "\"ip rule del\" requires arguments.\n");
806 if (strcmp(*argv
, "not") == 0) {
807 req
.frh
.flags
|= FIB_RULE_INVERT
;
808 } else if (strcmp(*argv
, "from") == 0) {
812 get_prefix(&dst
, *argv
, req
.frh
.family
);
813 req
.frh
.src_len
= dst
.bitlen
;
814 addattr_l(&req
.n
, sizeof(req
), FRA_SRC
,
815 &dst
.data
, dst
.bytelen
);
816 } else if (strcmp(*argv
, "to") == 0) {
820 get_prefix(&dst
, *argv
, req
.frh
.family
);
821 req
.frh
.dst_len
= dst
.bitlen
;
822 addattr_l(&req
.n
, sizeof(req
), FRA_DST
,
823 &dst
.data
, dst
.bytelen
);
824 } else if (matches(*argv
, "preference") == 0 ||
825 matches(*argv
, "order") == 0 ||
826 matches(*argv
, "priority") == 0) {
830 if (get_u32(&pref
, *argv
, 0))
831 invarg("preference value is invalid\n", *argv
);
832 addattr32(&req
.n
, sizeof(req
), FRA_PRIORITY
, pref
);
833 } else if (strcmp(*argv
, "tos") == 0 ||
834 matches(*argv
, "dsfield") == 0) {
838 if (rtnl_dsfield_a2n(&tos
, *argv
))
839 invarg("TOS value is invalid\n", *argv
);
841 } else if (strcmp(*argv
, "fwmark") == 0) {
843 __u32 fwmark
, fwmask
;
847 slash
= strchr(*argv
, '/');
850 if (get_u32(&fwmark
, *argv
, 0))
851 invarg("fwmark value is invalid\n", *argv
);
852 addattr32(&req
.n
, sizeof(req
), FRA_FWMARK
, fwmark
);
854 if (get_u32(&fwmask
, slash
+1, 0))
855 invarg("fwmask value is invalid\n",
857 addattr32(&req
.n
, sizeof(req
),
860 } else if (matches(*argv
, "realms") == 0) {
864 if (get_rt_realms_or_raw(&realm
, *argv
))
865 invarg("invalid realms\n", *argv
);
866 addattr32(&req
.n
, sizeof(req
), FRA_FLOW
, realm
);
867 } else if (matches(*argv
, "protocol") == 0) {
871 if (rtnl_rtprot_a2n(&proto
, *argv
))
872 invarg("\"protocol\" value is invalid\n", *argv
);
873 addattr8(&req
.n
, sizeof(req
), FRA_PROTOCOL
, proto
);
874 } else if (matches(*argv
, "tun_id") == 0) {
878 if (get_be64(&tun_id
, *argv
, 0))
879 invarg("\"tun_id\" value is invalid\n", *argv
);
880 addattr64(&req
.n
, sizeof(req
), FRA_TUN_ID
, tun_id
);
881 } else if (matches(*argv
, "table") == 0 ||
882 strcmp(*argv
, "lookup") == 0) {
884 if (rtnl_rttable_a2n(&tid
, *argv
))
885 invarg("invalid table ID\n", *argv
);
889 req
.frh
.table
= RT_TABLE_UNSPEC
;
890 addattr32(&req
.n
, sizeof(req
), FRA_TABLE
, tid
);
893 } else if (matches(*argv
, "suppress_prefixlength") == 0 ||
894 strcmp(*argv
, "sup_pl") == 0) {
898 if (get_s32(&pl
, *argv
, 0) || pl
< 0)
899 invarg("suppress_prefixlength value is invalid\n",
901 addattr32(&req
.n
, sizeof(req
),
902 FRA_SUPPRESS_PREFIXLEN
, pl
);
903 } else if (matches(*argv
, "suppress_ifgroup") == 0 ||
904 strcmp(*argv
, "sup_group") == 0) {
908 if (rtnl_group_a2n(&group
, *argv
))
909 invarg("Invalid \"suppress_ifgroup\" value\n",
911 addattr32(&req
.n
, sizeof(req
),
912 FRA_SUPPRESS_IFGROUP
, group
);
913 } else if (strcmp(*argv
, "dev") == 0 ||
914 strcmp(*argv
, "iif") == 0) {
916 if (check_ifname(*argv
))
917 invarg("\"iif\"/\"dev\" not a valid ifname", *argv
);
918 addattr_l(&req
.n
, sizeof(req
), FRA_IFNAME
,
919 *argv
, strlen(*argv
)+1);
920 } else if (strcmp(*argv
, "oif") == 0) {
922 if (check_ifname(*argv
))
923 invarg("\"oif\" not a valid ifname", *argv
);
924 addattr_l(&req
.n
, sizeof(req
), FRA_OIFNAME
,
925 *argv
, strlen(*argv
)+1);
926 } else if (strcmp(*argv
, "l3mdev") == 0) {
927 addattr8(&req
.n
, sizeof(req
), FRA_L3MDEV
, 1);
930 } else if (strcmp(*argv
, "uidrange") == 0) {
931 struct fib_rule_uid_range r
;
934 if (sscanf(*argv
, "%u-%u", &r
.start
, &r
.end
) != 2)
935 invarg("invalid UID range\n", *argv
);
936 addattr_l(&req
.n
, sizeof(req
), FRA_UID_RANGE
, &r
,
938 } else if (strcmp(*argv
, "nat") == 0 ||
939 matches(*argv
, "map-to") == 0) {
941 fprintf(stderr
, "Warning: route NAT is deprecated\n");
942 addattr32(&req
.n
, sizeof(req
), RTA_GATEWAY
,
944 req
.frh
.action
= RTN_NAT
;
945 } else if (strcmp(*argv
, "ipproto") == 0) {
949 ipproto
= inet_proto_a2n(*argv
);
951 invarg("Invalid \"ipproto\" value\n",
953 addattr8(&req
.n
, sizeof(req
), FRA_IP_PROTO
, ipproto
);
954 } else if (strcmp(*argv
, "sport") == 0) {
955 struct fib_rule_port_range r
;
959 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
963 invarg("invalid port range\n", *argv
);
964 addattr_l(&req
.n
, sizeof(req
), FRA_SPORT_RANGE
, &r
,
966 } else if (strcmp(*argv
, "dport") == 0) {
967 struct fib_rule_port_range r
;
971 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
975 invarg("invalid dport range\n", *argv
);
976 addattr_l(&req
.n
, sizeof(req
), FRA_DPORT_RANGE
, &r
,
981 if (strcmp(*argv
, "type") == 0)
984 if (matches(*argv
, "help") == 0)
986 else if (matches(*argv
, "goto") == 0) {
991 if (get_u32(&target
, *argv
, 0))
992 invarg("invalid target\n", *argv
);
993 addattr32(&req
.n
, sizeof(req
),
995 } else if (matches(*argv
, "nop") == 0)
997 else if (rtnl_rtntype_a2n(&type
, *argv
))
998 invarg("Failed to parse rule type", *argv
);
999 req
.frh
.action
= type
;
1006 if (l3mdev_rule
&& tid
!= 0) {
1008 "table can not be specified for l3mdev rules\n");
1012 if (req
.frh
.family
== AF_UNSPEC
)
1013 req
.frh
.family
= AF_INET
;
1015 if (!table_ok
&& cmd
== RTM_NEWRULE
)
1016 req
.frh
.table
= RT_TABLE_MAIN
;
1018 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
1024 int do_iprule(int argc
, char **argv
)
1027 return iprule_list_flush_or_save(0, NULL
, IPRULE_LIST
);
1028 } else if (matches(argv
[0], "list") == 0 ||
1029 matches(argv
[0], "lst") == 0 ||
1030 matches(argv
[0], "show") == 0) {
1031 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_LIST
);
1032 } else if (matches(argv
[0], "save") == 0) {
1033 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_SAVE
);
1034 } else if (matches(argv
[0], "restore") == 0) {
1035 return iprule_restore();
1036 } else if (matches(argv
[0], "add") == 0) {
1037 return iprule_modify(RTM_NEWRULE
, argc
-1, argv
+1);
1038 } else if (matches(argv
[0], "delete") == 0) {
1039 return iprule_modify(RTM_DELRULE
, argc
-1, argv
+1);
1040 } else if (matches(argv
[0], "flush") == 0) {
1041 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_FLUSH
);
1042 } else if (matches(argv
[0], "help") == 0)
1046 "Command \"%s\" is unknown, try \"ip rule help\".\n", *argv
);
1050 int do_multirule(int argc
, char **argv
)
1052 switch (preferred_family
) {
1055 preferred_family
= RTNL_FAMILY_IPMR
;
1058 preferred_family
= RTNL_FAMILY_IP6MR
;
1060 case RTNL_FAMILY_IPMR
:
1061 case RTNL_FAMILY_IP6MR
:
1065 "Multicast rules are only supported for IPv4/IPv6, was: %i\n",
1070 return do_iprule(argc
, argv
);