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
;
76 struct fib_rule_uid_range range
;
81 struct fib_rule_port_range sport
;
82 struct fib_rule_port_range dport
;
86 static inline int frh_get_table(struct fib_rule_hdr
*frh
, struct rtattr
**tb
)
88 __u32 table
= frh
->table
;
90 table
= rta_getattr_u32(tb
[RTA_TABLE
]);
94 static bool filter_nlmsg(struct nlmsghdr
*n
, struct rtattr
**tb
, int host_len
)
96 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
99 if (preferred_family
!= AF_UNSPEC
&& frh
->family
!= preferred_family
)
102 if (filter
.prefmask
&&
103 filter
.pref
^ (tb
[FRA_PRIORITY
] ? rta_getattr_u32(tb
[FRA_PRIORITY
]) : 0))
105 if (filter
.not && !(frh
->flags
& FIB_RULE_INVERT
))
108 if (filter
.src
.family
) {
109 inet_prefix
*f_src
= &filter
.src
;
111 if (f_src
->family
!= frh
->family
||
112 f_src
->bitlen
> frh
->src_len
)
115 if (inet_addr_match_rta(f_src
, tb
[FRA_SRC
]))
119 if (filter
.dst
.family
) {
120 inet_prefix
*f_dst
= &filter
.dst
;
122 if (f_dst
->family
!= frh
->family
||
123 f_dst
->bitlen
> frh
->dst_len
)
126 if (inet_addr_match_rta(f_dst
, tb
[FRA_DST
]))
130 if (filter
.tosmask
&& filter
.tos
^ frh
->tos
)
137 mark
= rta_getattr_u32(tb
[FRA_FWMARK
]);
138 if (filter
.fwmark
^ mark
)
145 mask
= rta_getattr_u32(tb
[FRA_FWMASK
]);
146 if (filter
.fwmask
^ mask
)
150 if (filter
.iifmask
) {
151 if (tb
[FRA_IFNAME
]) {
152 if (strcmp(filter
.iif
, rta_getattr_str(tb
[FRA_IFNAME
])) != 0)
159 if (filter
.oifmask
) {
160 if (tb
[FRA_OIFNAME
]) {
161 if (strcmp(filter
.oif
, rta_getattr_str(tb
[FRA_OIFNAME
])) != 0)
168 if (filter
.l3mdev
&& !(tb
[FRA_L3MDEV
] && rta_getattr_u8(tb
[FRA_L3MDEV
])))
171 if (filter
.uidrange
) {
172 struct fib_rule_uid_range
*r
= RTA_DATA(tb
[FRA_UID_RANGE
]);
174 if (!tb
[FRA_UID_RANGE
] ||
175 r
->start
!= filter
.range
.start
||
176 r
->end
!= filter
.range
.end
)
180 if (filter
.ipproto
) {
183 if (tb
[FRA_IP_PROTO
])
184 ipproto
= rta_getattr_u8(tb
[FRA_IP_PROTO
]);
185 if (filter
.ipproto
!= ipproto
)
189 if (filter
.sport
.start
) {
190 const struct fib_rule_port_range
*r
;
192 if (!tb
[FRA_SPORT_RANGE
])
195 r
= RTA_DATA(tb
[FRA_SPORT_RANGE
]);
196 if (r
->start
!= filter
.sport
.start
||
197 r
->end
!= filter
.sport
.end
)
201 if (filter
.dport
.start
) {
202 const struct fib_rule_port_range
*r
;
204 if (!tb
[FRA_DPORT_RANGE
])
207 r
= RTA_DATA(tb
[FRA_DPORT_RANGE
]);
208 if (r
->start
!= filter
.dport
.start
||
209 r
->end
!= filter
.dport
.end
)
213 table
= frh_get_table(frh
, tb
);
214 if (filter
.tb
> 0 && filter
.tb
^ table
)
220 int print_rule(struct nlmsghdr
*n
, void *arg
)
223 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
224 int len
= n
->nlmsg_len
;
226 __u32 table
, prio
= 0;
227 struct rtattr
*tb
[FRA_MAX
+1];
230 if (n
->nlmsg_type
!= RTM_NEWRULE
&& n
->nlmsg_type
!= RTM_DELRULE
)
233 len
-= NLMSG_LENGTH(sizeof(*frh
));
237 parse_rtattr(tb
, FRA_MAX
, RTM_RTA(frh
), len
);
239 host_len
= af_bit_len(frh
->family
);
241 if (!filter_nlmsg(n
, tb
, host_len
))
244 open_json_object(NULL
);
245 if (n
->nlmsg_type
== RTM_DELRULE
)
246 print_bool(PRINT_ANY
, "deleted", "Deleted ", true);
248 if (tb
[FRA_PRIORITY
])
249 prio
= rta_getattr_u32(tb
[FRA_PRIORITY
]);
251 print_uint(PRINT_ANY
, "priority", "%u:\t", prio
);
253 if (frh
->flags
& FIB_RULE_INVERT
)
254 print_null(PRINT_ANY
, "not", "not ", NULL
);
257 const char *src
= rt_addr_n2a_rta(frh
->family
, tb
[FRA_SRC
]);
259 print_string(PRINT_FP
, NULL
, "from ", NULL
);
260 print_color_string(PRINT_ANY
, ifa_family_color(frh
->family
),
262 if (frh
->src_len
!= host_len
)
263 print_uint(PRINT_ANY
, "srclen", "/%u ", frh
->src_len
);
265 print_string(PRINT_FP
, NULL
, " ", NULL
);
266 } else if (frh
->src_len
) {
267 print_string(PRINT_ANY
, "src", "from %s", "0");
268 print_uint(PRINT_ANY
, "srclen", "/%u ", frh
->src_len
);
270 print_string(PRINT_ANY
, "src", "from %s ", "all");
274 const char *dst
= rt_addr_n2a_rta(frh
->family
, tb
[FRA_DST
]);
276 print_string(PRINT_FP
, NULL
, "to ", NULL
);
277 print_color_string(PRINT_ANY
, ifa_family_color(frh
->family
),
279 if (frh
->dst_len
!= host_len
)
280 print_uint(PRINT_ANY
, "dstlen", "/%u ", frh
->dst_len
);
282 print_string(PRINT_FP
, NULL
, " ", NULL
);
283 } else if (frh
->dst_len
) {
284 print_string(PRINT_ANY
, "dst", "to %s", "0");
285 print_uint(PRINT_ANY
, "dstlen", "/%u ", frh
->dst_len
);
289 print_string(PRINT_ANY
, "tos",
291 rtnl_dsfield_n2a(frh
->tos
, b1
, sizeof(b1
)));
294 if (tb
[FRA_FWMARK
] || tb
[FRA_FWMASK
]) {
295 __u32 mark
= 0, mask
= 0;
298 mark
= rta_getattr_u32(tb
[FRA_FWMARK
]);
300 if (tb
[FRA_FWMASK
] &&
301 (mask
= rta_getattr_u32(tb
[FRA_FWMASK
])) != 0xFFFFFFFF) {
302 print_0xhex(PRINT_ANY
, "fwmark", "fwmark %#llx", mark
);
303 print_0xhex(PRINT_ANY
, "fwmask", "/%#llx ", mask
);
305 print_0xhex(PRINT_ANY
, "fwmark", "fwmark %#llx ", mark
);
309 if (tb
[FRA_IFNAME
]) {
310 if (!is_json_context())
312 print_color_string(PRINT_ANY
, COLOR_IFNAME
,
314 rta_getattr_str(tb
[FRA_IFNAME
]));
316 if (frh
->flags
& FIB_RULE_IIF_DETACHED
)
317 print_null(PRINT_ANY
, "iif_detached", "[detached] ",
321 if (tb
[FRA_OIFNAME
]) {
322 if (!is_json_context())
325 print_color_string(PRINT_ANY
, COLOR_IFNAME
, "oif", "%s ",
326 rta_getattr_str(tb
[FRA_OIFNAME
]));
328 if (frh
->flags
& FIB_RULE_OIF_DETACHED
)
329 print_null(PRINT_ANY
, "oif_detached", "[detached] ",
333 if (tb
[FRA_L3MDEV
]) {
334 __u8 mdev
= rta_getattr_u8(tb
[FRA_L3MDEV
]);
337 print_null(PRINT_ANY
, "l3mdev",
338 "lookup [l3mdev-table] ", NULL
);
341 if (tb
[FRA_UID_RANGE
]) {
342 struct fib_rule_uid_range
*r
= RTA_DATA(tb
[FRA_UID_RANGE
]);
344 print_uint(PRINT_ANY
, "uid_start", "uidrange %u", r
->start
);
345 print_uint(PRINT_ANY
, "uid_end", "-%u ", r
->end
);
348 if (tb
[FRA_IP_PROTO
]) {
350 print_string(PRINT_ANY
, "ipproto", "ipproto %s ",
351 inet_proto_n2a(rta_getattr_u8(tb
[FRA_IP_PROTO
]),
352 pbuf
, sizeof(pbuf
)));
355 if (tb
[FRA_SPORT_RANGE
]) {
356 struct fib_rule_port_range
*r
= RTA_DATA(tb
[FRA_SPORT_RANGE
]);
358 if (r
->start
== r
->end
) {
359 print_uint(PRINT_ANY
, "sport", "sport %u ", r
->start
);
361 print_uint(PRINT_ANY
, "sport_start", "sport %u",
363 print_uint(PRINT_ANY
, "sport_end", "-%u ", r
->end
);
367 if (tb
[FRA_DPORT_RANGE
]) {
368 struct fib_rule_port_range
*r
= RTA_DATA(tb
[FRA_DPORT_RANGE
]);
370 if (r
->start
== r
->end
) {
371 print_uint(PRINT_ANY
, "dport", "dport %u ", r
->start
);
373 print_uint(PRINT_ANY
, "dport_start", "dport %u",
375 print_uint(PRINT_ANY
, "dport_end", "-%u ", r
->end
);
379 table
= frh_get_table(frh
, tb
);
381 print_string(PRINT_ANY
, "table",
383 rtnl_rttable_n2a(table
, b1
, sizeof(b1
)));
385 if (tb
[FRA_SUPPRESS_PREFIXLEN
]) {
386 int pl
= rta_getattr_u32(tb
[FRA_SUPPRESS_PREFIXLEN
]);
389 print_int(PRINT_ANY
, "suppress_prefixlen",
390 "suppress_prefixlength %d ", pl
);
393 if (tb
[FRA_SUPPRESS_IFGROUP
]) {
394 int group
= rta_getattr_u32(tb
[FRA_SUPPRESS_IFGROUP
]);
398 = rtnl_group_n2a(group
, b1
, sizeof(b1
));
400 print_string(PRINT_ANY
, "suppress_ifgroup",
401 "suppress_ifgroup %s ", grname
);
407 __u32 to
= rta_getattr_u32(tb
[FRA_FLOW
]);
412 print_string(PRINT_ANY
,
413 "flow_from", "realms %s/",
414 rtnl_rtrealm_n2a(from
, b1
, sizeof(b1
)));
416 print_string(PRINT_ANY
, "flow_to", "%s ",
417 rtnl_rtrealm_n2a(to
, b1
, sizeof(b1
)));
420 if (frh
->action
== RTN_NAT
) {
421 if (tb
[RTA_GATEWAY
]) {
424 gateway
= format_host_rta(frh
->family
, tb
[RTA_GATEWAY
]);
426 print_string(PRINT_ANY
, "nat_gateway",
427 "map-to %s ", gateway
);
429 print_null(PRINT_ANY
, "masquerade", "masquerade", NULL
);
431 } else if (frh
->action
== FR_ACT_GOTO
) {
433 print_uint(PRINT_ANY
, "goto", "goto %u",
434 rta_getattr_u32(tb
[FRA_GOTO
]));
436 print_string(PRINT_ANY
, "goto", "goto %s", "none");
438 if (frh
->flags
& FIB_RULE_UNRESOLVED
)
439 print_null(PRINT_ANY
, "unresolved", "unresolved", NULL
);
440 } else if (frh
->action
== FR_ACT_NOP
) {
441 print_null(PRINT_ANY
, "nop", "nop", NULL
);
442 } else if (frh
->action
!= FR_ACT_TO_TBL
) {
443 print_string(PRINT_ANY
, "to_tbl", "%s",
444 rtnl_rtntype_n2a(frh
->action
, b1
, sizeof(b1
)));
447 if (tb
[FRA_PROTOCOL
]) {
448 __u8 protocol
= rta_getattr_u8(tb
[FRA_PROTOCOL
]);
450 if ((protocol
&& protocol
!= RTPROT_KERNEL
) || show_details
> 0) {
451 print_string(PRINT_ANY
, "protocol", " proto %s ",
452 rtnl_rtprot_n2a(protocol
, b1
, sizeof(b1
)));
455 print_string(PRINT_FP
, NULL
, "\n", "");
461 static __u32 rule_dump_magic
= 0x71706986;
463 static int save_rule_prep(void)
467 if (isatty(STDOUT_FILENO
)) {
468 fprintf(stderr
, "Not sending a binary stream to stdout\n");
472 ret
= write(STDOUT_FILENO
, &rule_dump_magic
, sizeof(rule_dump_magic
));
473 if (ret
!= sizeof(rule_dump_magic
)) {
474 fprintf(stderr
, "Can't write magic to dump file\n");
481 static int save_rule(struct nlmsghdr
*n
, void *arg
)
485 ret
= write(STDOUT_FILENO
, n
, n
->nlmsg_len
);
486 if ((ret
> 0) && (ret
!= n
->nlmsg_len
)) {
487 fprintf(stderr
, "Short write while saving nlmsg\n");
491 return ret
== n
->nlmsg_len
? 0 : ret
;
494 static int flush_rule(struct nlmsghdr
*n
, void *arg
)
496 struct rtnl_handle rth2
;
497 struct fib_rule_hdr
*frh
= NLMSG_DATA(n
);
498 int len
= n
->nlmsg_len
;
499 struct rtattr
*tb
[FRA_MAX
+1];
502 len
-= NLMSG_LENGTH(sizeof(*frh
));
506 parse_rtattr(tb
, FRA_MAX
, RTM_RTA(frh
), len
);
508 host_len
= af_bit_len(frh
->family
);
509 if (!filter_nlmsg(n
, tb
, host_len
))
512 if (tb
[FRA_PROTOCOL
]) {
513 __u8 protocol
= rta_getattr_u8(tb
[FRA_PROTOCOL
]);
515 if ((filter
.protocol
^ protocol
) & filter
.protocolmask
)
519 if (tb
[FRA_PRIORITY
]) {
520 n
->nlmsg_type
= RTM_DELRULE
;
521 n
->nlmsg_flags
= NLM_F_REQUEST
;
523 if (rtnl_open(&rth2
, 0) < 0)
526 if (rtnl_talk(&rth2
, n
, NULL
) < 0)
535 static int iprule_list_flush_or_save(int argc
, char **argv
, int action
)
537 rtnl_filter_t filter_fn
;
538 int af
= preferred_family
;
543 if (action
== IPRULE_SAVE
&& argc
> 0) {
544 fprintf(stderr
, "\"ip rule save\" does not take any arguments.\n");
550 if (save_rule_prep())
552 filter_fn
= save_rule
;
555 filter_fn
= flush_rule
;
558 filter_fn
= print_rule
;
561 memset(&filter
, 0, sizeof(filter
));
564 if (matches(*argv
, "preference") == 0 ||
565 matches(*argv
, "order") == 0 ||
566 matches(*argv
, "priority") == 0) {
570 if (get_u32(&pref
, *argv
, 0))
571 invarg("preference value is invalid\n", *argv
);
574 } else if (strcmp(*argv
, "not") == 0) {
576 } else if (strcmp(*argv
, "tos") == 0) {
580 if (rtnl_dsfield_a2n(&tos
, *argv
))
581 invarg("TOS value is invalid\n", *argv
);
584 } else if (strcmp(*argv
, "fwmark") == 0) {
586 __u32 fwmark
, fwmask
;
589 slash
= strchr(*argv
, '/');
592 if (get_u32(&fwmark
, *argv
, 0))
593 invarg("fwmark value is invalid\n", *argv
);
594 filter
.fwmark
= fwmark
;
596 if (get_u32(&fwmask
, slash
+1, 0))
597 invarg("fwmask value is invalid\n",
599 filter
.fwmask
= fwmask
;
601 } else if (strcmp(*argv
, "dev") == 0 ||
602 strcmp(*argv
, "iif") == 0) {
604 if (get_ifname(filter
.iif
, *argv
))
605 invarg("\"iif\"/\"dev\" not a valid ifname", *argv
);
607 } else if (strcmp(*argv
, "oif") == 0) {
609 if (get_ifname(filter
.oif
, *argv
))
610 invarg("\"oif\" not a valid ifname", *argv
);
612 } else if (strcmp(*argv
, "l3mdev") == 0) {
614 } else if (strcmp(*argv
, "uidrange") == 0) {
617 if (sscanf(*argv
, "%u-%u",
619 &filter
.range
.end
) != 2)
620 invarg("invalid UID range\n", *argv
);
622 } else if (matches(*argv
, "lookup") == 0 ||
623 matches(*argv
, "table") == 0) {
627 if (rtnl_rttable_a2n(&tid
, *argv
))
628 invarg("table id value is invalid\n", *argv
);
630 } else if (matches(*argv
, "from") == 0 ||
631 matches(*argv
, "src") == 0) {
633 if (get_prefix(&filter
.src
, *argv
, af
))
634 invarg("from value is invalid\n", *argv
);
635 } else if (matches(*argv
, "protocol") == 0) {
638 filter
.protocolmask
= -1;
639 if (rtnl_rtprot_a2n(&prot
, *argv
)) {
640 if (strcmp(*argv
, "all") != 0)
641 invarg("invalid \"protocol\"\n", *argv
);
643 filter
.protocolmask
= 0;
645 filter
.protocol
= prot
;
646 } else if (strcmp(*argv
, "ipproto") == 0) {
650 ipproto
= inet_proto_a2n(*argv
);
652 invarg("Invalid \"ipproto\" value\n", *argv
);
653 filter
.ipproto
= ipproto
;
654 } else if (strcmp(*argv
, "sport") == 0) {
655 struct fib_rule_port_range r
;
659 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
663 invarg("invalid port range\n", *argv
);
665 } else if (strcmp(*argv
, "dport") == 0) {
666 struct fib_rule_port_range r
;
670 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
674 invarg("invalid dport range\n", *argv
);
677 if (matches(*argv
, "dst") == 0 ||
678 matches(*argv
, "to") == 0) {
681 if (get_prefix(&filter
.dst
, *argv
, af
))
682 invarg("to value is invalid\n", *argv
);
687 if (rtnl_ruledump_req(&rth
, af
) < 0) {
688 perror("Cannot send dump request");
693 if (rtnl_dump_filter(&rth
, filter_fn
, stdout
) < 0) {
694 fprintf(stderr
, "Dump terminated\n");
702 static int rule_dump_check_magic(void)
707 if (isatty(STDIN_FILENO
)) {
708 fprintf(stderr
, "Can't restore rule dump from a terminal\n");
712 ret
= fread(&magic
, sizeof(magic
), 1, stdin
);
713 if (magic
!= rule_dump_magic
) {
714 fprintf(stderr
, "Magic mismatch (%d elems, %x magic)\n",
722 static int restore_handler(struct rtnl_ctrl_data
*ctrl
,
723 struct nlmsghdr
*n
, void *arg
)
727 n
->nlmsg_flags
|= NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_ACK
;
731 ret
= rtnl_talk(&rth
, n
, NULL
);
732 if ((ret
< 0) && (errno
== EEXIST
))
739 static int iprule_restore(void)
741 if (rule_dump_check_magic())
744 exit(rtnl_from_file(stdin
, &restore_handler
, NULL
));
747 static int iprule_modify(int cmd
, int argc
, char **argv
)
754 struct fib_rule_hdr frh
;
758 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct fib_rule_hdr
)),
759 .n
.nlmsg_flags
= NLM_F_REQUEST
,
760 .frh
.family
= preferred_family
,
761 .frh
.action
= FR_ACT_UNSPEC
,
764 if (cmd
== RTM_NEWRULE
) {
767 "\"ip rule add\" requires arguments.\n");
770 req
.n
.nlmsg_flags
|= NLM_F_CREATE
|NLM_F_EXCL
;
771 req
.frh
.action
= FR_ACT_TO_TBL
;
774 if (cmd
== RTM_DELRULE
&& argc
== 0) {
775 fprintf(stderr
, "\"ip rule del\" requires arguments.\n");
780 if (strcmp(*argv
, "not") == 0) {
781 req
.frh
.flags
|= FIB_RULE_INVERT
;
782 } else if (strcmp(*argv
, "from") == 0) {
786 get_prefix(&dst
, *argv
, req
.frh
.family
);
787 req
.frh
.src_len
= dst
.bitlen
;
788 addattr_l(&req
.n
, sizeof(req
), FRA_SRC
,
789 &dst
.data
, dst
.bytelen
);
790 } else if (strcmp(*argv
, "to") == 0) {
794 get_prefix(&dst
, *argv
, req
.frh
.family
);
795 req
.frh
.dst_len
= dst
.bitlen
;
796 addattr_l(&req
.n
, sizeof(req
), FRA_DST
,
797 &dst
.data
, dst
.bytelen
);
798 } else if (matches(*argv
, "preference") == 0 ||
799 matches(*argv
, "order") == 0 ||
800 matches(*argv
, "priority") == 0) {
804 if (get_u32(&pref
, *argv
, 0))
805 invarg("preference value is invalid\n", *argv
);
806 addattr32(&req
.n
, sizeof(req
), FRA_PRIORITY
, pref
);
807 } else if (strcmp(*argv
, "tos") == 0 ||
808 matches(*argv
, "dsfield") == 0) {
812 if (rtnl_dsfield_a2n(&tos
, *argv
))
813 invarg("TOS value is invalid\n", *argv
);
815 } else if (strcmp(*argv
, "fwmark") == 0) {
817 __u32 fwmark
, fwmask
;
821 slash
= strchr(*argv
, '/');
824 if (get_u32(&fwmark
, *argv
, 0))
825 invarg("fwmark value is invalid\n", *argv
);
826 addattr32(&req
.n
, sizeof(req
), FRA_FWMARK
, fwmark
);
828 if (get_u32(&fwmask
, slash
+1, 0))
829 invarg("fwmask value is invalid\n",
831 addattr32(&req
.n
, sizeof(req
),
834 } else if (matches(*argv
, "realms") == 0) {
838 if (get_rt_realms_or_raw(&realm
, *argv
))
839 invarg("invalid realms\n", *argv
);
840 addattr32(&req
.n
, sizeof(req
), FRA_FLOW
, realm
);
841 } else if (matches(*argv
, "protocol") == 0) {
845 if (rtnl_rtprot_a2n(&proto
, *argv
))
846 invarg("\"protocol\" value is invalid\n", *argv
);
847 addattr8(&req
.n
, sizeof(req
), FRA_PROTOCOL
, proto
);
848 } else if (matches(*argv
, "table") == 0 ||
849 strcmp(*argv
, "lookup") == 0) {
851 if (rtnl_rttable_a2n(&tid
, *argv
))
852 invarg("invalid table ID\n", *argv
);
856 req
.frh
.table
= RT_TABLE_UNSPEC
;
857 addattr32(&req
.n
, sizeof(req
), FRA_TABLE
, tid
);
860 } else if (matches(*argv
, "suppress_prefixlength") == 0 ||
861 strcmp(*argv
, "sup_pl") == 0) {
865 if (get_s32(&pl
, *argv
, 0) || pl
< 0)
866 invarg("suppress_prefixlength value is invalid\n",
868 addattr32(&req
.n
, sizeof(req
),
869 FRA_SUPPRESS_PREFIXLEN
, pl
);
870 } else if (matches(*argv
, "suppress_ifgroup") == 0 ||
871 strcmp(*argv
, "sup_group") == 0) {
875 if (rtnl_group_a2n(&group
, *argv
))
876 invarg("Invalid \"suppress_ifgroup\" value\n",
878 addattr32(&req
.n
, sizeof(req
),
879 FRA_SUPPRESS_IFGROUP
, group
);
880 } else if (strcmp(*argv
, "dev") == 0 ||
881 strcmp(*argv
, "iif") == 0) {
883 if (check_ifname(*argv
))
884 invarg("\"iif\"/\"dev\" not a valid ifname", *argv
);
885 addattr_l(&req
.n
, sizeof(req
), FRA_IFNAME
,
886 *argv
, strlen(*argv
)+1);
887 } else if (strcmp(*argv
, "oif") == 0) {
889 if (check_ifname(*argv
))
890 invarg("\"oif\" not a valid ifname", *argv
);
891 addattr_l(&req
.n
, sizeof(req
), FRA_OIFNAME
,
892 *argv
, strlen(*argv
)+1);
893 } else if (strcmp(*argv
, "l3mdev") == 0) {
894 addattr8(&req
.n
, sizeof(req
), FRA_L3MDEV
, 1);
897 } else if (strcmp(*argv
, "uidrange") == 0) {
898 struct fib_rule_uid_range r
;
901 if (sscanf(*argv
, "%u-%u", &r
.start
, &r
.end
) != 2)
902 invarg("invalid UID range\n", *argv
);
903 addattr_l(&req
.n
, sizeof(req
), FRA_UID_RANGE
, &r
,
905 } else if (strcmp(*argv
, "nat") == 0 ||
906 matches(*argv
, "map-to") == 0) {
908 fprintf(stderr
, "Warning: route NAT is deprecated\n");
909 addattr32(&req
.n
, sizeof(req
), RTA_GATEWAY
,
911 req
.frh
.action
= RTN_NAT
;
912 } else if (strcmp(*argv
, "ipproto") == 0) {
916 ipproto
= inet_proto_a2n(*argv
);
918 invarg("Invalid \"ipproto\" value\n",
920 addattr8(&req
.n
, sizeof(req
), FRA_IP_PROTO
, ipproto
);
921 } else if (strcmp(*argv
, "sport") == 0) {
922 struct fib_rule_port_range r
;
926 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
930 invarg("invalid port range\n", *argv
);
931 addattr_l(&req
.n
, sizeof(req
), FRA_SPORT_RANGE
, &r
,
933 } else if (strcmp(*argv
, "dport") == 0) {
934 struct fib_rule_port_range r
;
938 ret
= sscanf(*argv
, "%hu-%hu", &r
.start
, &r
.end
);
942 invarg("invalid dport range\n", *argv
);
943 addattr_l(&req
.n
, sizeof(req
), FRA_DPORT_RANGE
, &r
,
948 if (strcmp(*argv
, "type") == 0)
951 if (matches(*argv
, "help") == 0)
953 else if (matches(*argv
, "goto") == 0) {
958 if (get_u32(&target
, *argv
, 0))
959 invarg("invalid target\n", *argv
);
960 addattr32(&req
.n
, sizeof(req
),
962 } else if (matches(*argv
, "nop") == 0)
964 else if (rtnl_rtntype_a2n(&type
, *argv
))
965 invarg("Failed to parse rule type", *argv
);
966 req
.frh
.action
= type
;
973 if (l3mdev_rule
&& tid
!= 0) {
975 "table can not be specified for l3mdev rules\n");
979 if (req
.frh
.family
== AF_UNSPEC
)
980 req
.frh
.family
= AF_INET
;
982 if (!table_ok
&& cmd
== RTM_NEWRULE
)
983 req
.frh
.table
= RT_TABLE_MAIN
;
985 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
991 int do_iprule(int argc
, char **argv
)
994 return iprule_list_flush_or_save(0, NULL
, IPRULE_LIST
);
995 } else if (matches(argv
[0], "list") == 0 ||
996 matches(argv
[0], "lst") == 0 ||
997 matches(argv
[0], "show") == 0) {
998 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_LIST
);
999 } else if (matches(argv
[0], "save") == 0) {
1000 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_SAVE
);
1001 } else if (matches(argv
[0], "restore") == 0) {
1002 return iprule_restore();
1003 } else if (matches(argv
[0], "add") == 0) {
1004 return iprule_modify(RTM_NEWRULE
, argc
-1, argv
+1);
1005 } else if (matches(argv
[0], "delete") == 0) {
1006 return iprule_modify(RTM_DELRULE
, argc
-1, argv
+1);
1007 } else if (matches(argv
[0], "flush") == 0) {
1008 return iprule_list_flush_or_save(argc
-1, argv
+1, IPRULE_FLUSH
);
1009 } else if (matches(argv
[0], "help") == 0)
1013 "Command \"%s\" is unknown, try \"ip rule help\".\n", *argv
);
1017 int do_multirule(int argc
, char **argv
)
1019 switch (preferred_family
) {
1022 preferred_family
= RTNL_FAMILY_IPMR
;
1025 preferred_family
= RTNL_FAMILY_IP6MR
;
1027 case RTNL_FAMILY_IPMR
:
1028 case RTNL_FAMILY_IP6MR
:
1032 "Multicast rules are only supported for IPv4/IPv6, was: %i\n",
1037 return do_iprule(argc
, argv
);