4 * Copyright (C)2004 USAGI/WIDE Project
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses>.
24 * Masahide NAKAMURA @USAGI
33 #include "ip_common.h"
35 /* #define NLMSG_DELETEALL_BUF_SIZE (4096-512) */
36 #define NLMSG_DELETEALL_BUF_SIZE 8192
39 * Receiving buffer defines:
41 * data = struct xfrm_usersa_info
44 * ... (max count of rtattr is XFRM_MAX+1
46 * each rtattr data = struct xfrm_algo(dynamic size) or xfrm_address_t
48 #define NLMSG_BUF_SIZE 4096
49 #define RTA_BUF_SIZE 2048
50 #define XFRM_ALGO_KEY_BUF_SIZE 512
51 #define CTX_BUF_SIZE 256
53 static void usage(void) __attribute__((noreturn
));
55 static void usage(void)
57 fprintf(stderr
, "Usage: ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n");
58 fprintf(stderr
, " [ mark MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ]\n");
59 fprintf(stderr
, " [ replay-window SIZE ] [ replay-seq SEQ ] [ replay-oseq SEQ ]\n");
60 fprintf(stderr
, " [ replay-seq-hi SEQ ] [ replay-oseq-hi SEQ ]\n");
61 fprintf(stderr
, " [ flag FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ]\n");
62 fprintf(stderr
, " [ coa ADDR[/PLEN] ] [ ctx CTX ] [ extra-flag EXTRA-FLAG-LIST ]\n");
63 fprintf(stderr
, "Usage: ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ]\n");
64 fprintf(stderr
, " [ reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]\n");
65 fprintf(stderr
, "Usage: ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]\n");
66 fprintf(stderr
, "Usage: ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n");
67 fprintf(stderr
, " [ flag FLAG-LIST ]\n");
68 fprintf(stderr
, "Usage: ip xfrm state flush [ proto XFRM-PROTO ]\n");
69 fprintf(stderr
, "Usage: ip xfrm state count\n");
70 fprintf(stderr
, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]\n");
71 fprintf(stderr
, "XFRM-PROTO := ");
72 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_ESP
));
73 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_AH
));
74 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_COMP
));
75 fprintf(stderr
, "%s | ", strxf_xfrmproto(IPPROTO_ROUTING
));
76 fprintf(stderr
, "%s\n", strxf_xfrmproto(IPPROTO_DSTOPTS
));
77 fprintf(stderr
, "ALGO-LIST := [ ALGO-LIST ] ALGO\n");
78 fprintf(stderr
, "ALGO := { ");
79 fprintf(stderr
, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT
));
80 fprintf(stderr
, "%s", strxf_algotype(XFRMA_ALG_AUTH
));
81 fprintf(stderr
, " } ALGO-NAME ALGO-KEYMAT |\n");
82 fprintf(stderr
, " %s", strxf_algotype(XFRMA_ALG_AUTH_TRUNC
));
83 fprintf(stderr
, " ALGO-NAME ALGO-KEYMAT ALGO-TRUNC-LEN |\n");
84 fprintf(stderr
, " %s", strxf_algotype(XFRMA_ALG_AEAD
));
85 fprintf(stderr
, " ALGO-NAME ALGO-KEYMAT ALGO-ICV-LEN |\n");
86 fprintf(stderr
, " %s", strxf_algotype(XFRMA_ALG_COMP
));
87 fprintf(stderr
, " ALGO-NAME\n");
88 fprintf(stderr
, "MODE := transport | tunnel | beet | ro | in_trigger\n");
89 fprintf(stderr
, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
90 fprintf(stderr
, "FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec | align4 | esn\n");
91 fprintf(stderr
, "EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG\n");
92 fprintf(stderr
, "EXTRA-FLAG := dont-encap-dscp\n");
93 fprintf(stderr
, "SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [ UPSPEC ]\n");
94 fprintf(stderr
, "UPSPEC := proto { { ");
95 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_TCP
));
96 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_UDP
));
97 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_SCTP
));
98 fprintf(stderr
, "%s", strxf_proto(IPPROTO_DCCP
));
99 fprintf(stderr
, " } [ sport PORT ] [ dport PORT ] |\n");
100 fprintf(stderr
, " { ");
101 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_ICMP
));
102 fprintf(stderr
, "%s | ", strxf_proto(IPPROTO_ICMPV6
));
103 fprintf(stderr
, "%s", strxf_proto(IPPROTO_MH
));
104 fprintf(stderr
, " } [ type NUMBER ] [ code NUMBER ] |\n");
105 fprintf(stderr
, " %s", strxf_proto(IPPROTO_GRE
));
106 fprintf(stderr
, " [ key { DOTTED-QUAD | NUMBER } ] | PROTO }\n");
107 fprintf(stderr
, "LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT\n");
108 fprintf(stderr
, "LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard } SECONDS |\n");
109 fprintf(stderr
, " { byte-soft | byte-hard } SIZE | { packet-soft | packet-hard } COUNT\n");
110 fprintf(stderr
, "ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR\n");
115 static int xfrm_algo_parse(struct xfrm_algo
*alg
, enum xfrm_attr_type_t type
,
116 char *name
, char *key
, char *buf
, int max
)
119 int slen
= strlen(key
);
122 /* XXX: verifying both name and key is required! */
123 fprintf(stderr
, "warning: ALGO-NAME/ALGO-KEYMAT values will be sent to the kernel promiscuously! (verifying them isn't implemented yet)\n");
126 strncpy(alg
->alg_name
, name
, sizeof(alg
->alg_name
));
128 if (slen
> 2 && strncmp(key
, "0x", 2) == 0) {
129 /* split two chars "0x" from the top */
135 /* Converting hexadecimal numbered string into real key;
136 * Convert each two chars into one char(value). If number
137 * of the length is odd, add zero on the top for rounding.
140 /* calculate length of the converted values(real key) */
141 len
= (plen
+ 1) / 2;
143 invarg("ALGO-KEYMAT value makes buffer overflow\n", key
);
145 for (i
= -(plen
% 2), j
= 0; j
< len
; i
+= 2, j
++) {
149 vbuf
[0] = i
>= 0 ? p
[i
] : '0';
153 if (get_u8(&val
, vbuf
, 16))
154 invarg("ALGO-KEYMAT value is invalid", key
);
162 invarg("ALGO-KEYMAT value makes buffer overflow\n", key
);
164 memcpy(buf
, key
, len
);
168 alg
->alg_key_len
= len
* 8;
173 static int xfrm_seq_parse(__u32
*seq
, int *argcp
, char ***argvp
)
176 char **argv
= *argvp
;
178 if (get_be32(seq
, *argv
, 0))
179 invarg("SEQ value is invalid", *argv
);
187 static int xfrm_state_flag_parse(__u8
*flags
, int *argcp
, char ***argvp
)
190 char **argv
= *argvp
;
191 int len
= strlen(*argv
);
193 if (len
> 2 && strncmp(*argv
, "0x", 2) == 0) {
196 if (get_u8(&val
, *argv
, 16))
197 invarg("FLAG value is invalid", *argv
);
201 if (strcmp(*argv
, "noecn") == 0)
202 *flags
|= XFRM_STATE_NOECN
;
203 else if (strcmp(*argv
, "decap-dscp") == 0)
204 *flags
|= XFRM_STATE_DECAP_DSCP
;
205 else if (strcmp(*argv
, "nopmtudisc") == 0)
206 *flags
|= XFRM_STATE_NOPMTUDISC
;
207 else if (strcmp(*argv
, "wildrecv") == 0)
208 *flags
|= XFRM_STATE_WILDRECV
;
209 else if (strcmp(*argv
, "icmp") == 0)
210 *flags
|= XFRM_STATE_ICMP
;
211 else if (strcmp(*argv
, "af-unspec") == 0)
212 *flags
|= XFRM_STATE_AF_UNSPEC
;
213 else if (strcmp(*argv
, "align4") == 0)
214 *flags
|= XFRM_STATE_ALIGN4
;
215 else if (strcmp(*argv
, "esn") == 0)
216 *flags
|= XFRM_STATE_ESN
;
218 PREV_ARG(); /* back track */
234 static int xfrm_state_extra_flag_parse(__u32
*extra_flags
, int *argcp
, char ***argvp
)
237 char **argv
= *argvp
;
238 int len
= strlen(*argv
);
240 if (len
> 2 && strncmp(*argv
, "0x", 2) == 0) {
243 if (get_u32(&val
, *argv
, 16))
244 invarg("\"EXTRA-FLAG\" is invalid", *argv
);
248 if (strcmp(*argv
, "dont-encap-dscp") == 0)
249 *extra_flags
|= XFRM_SA_XFLAG_DONT_ENCAP_DSCP
;
251 PREV_ARG(); /* back track */
267 static int xfrm_state_modify(int cmd
, unsigned int flags
, int argc
, char **argv
)
269 struct rtnl_handle rth
;
272 struct xfrm_usersa_info xsinfo
;
273 char buf
[RTA_BUF_SIZE
];
275 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsinfo
)),
276 .n
.nlmsg_flags
= NLM_F_REQUEST
| flags
,
278 .xsinfo
.family
= preferred_family
,
279 .xsinfo
.lft
.soft_byte_limit
= XFRM_INF
,
280 .xsinfo
.lft
.hard_byte_limit
= XFRM_INF
,
281 .xsinfo
.lft
.soft_packet_limit
= XFRM_INF
,
282 .xsinfo
.lft
.hard_packet_limit
= XFRM_INF
,
284 struct xfrm_replay_state replay
= {};
285 struct xfrm_replay_state_esn replay_esn
= {};
286 __u32 replay_window
= 0;
287 __u32 seq
= 0, oseq
= 0, seq_hi
= 0, oseq_hi
= 0;
295 __u32 extra_flags
= 0;
296 struct xfrm_mark mark
= {0, 0};
298 struct xfrm_user_sec_ctx sctx
;
299 char str
[CTX_BUF_SIZE
];
303 if (strcmp(*argv
, "mode") == 0) {
305 xfrm_mode_parse(&req
.xsinfo
.mode
, &argc
, &argv
);
306 } else if (strcmp(*argv
, "mark") == 0) {
307 xfrm_parse_mark(&mark
, &argc
, &argv
);
308 } else if (strcmp(*argv
, "reqid") == 0) {
310 xfrm_reqid_parse(&req
.xsinfo
.reqid
, &argc
, &argv
);
311 } else if (strcmp(*argv
, "seq") == 0) {
313 xfrm_seq_parse(&req
.xsinfo
.seq
, &argc
, &argv
);
314 } else if (strcmp(*argv
, "replay-window") == 0) {
316 if (get_u32(&replay_window
, *argv
, 0))
317 invarg("value after \"replay-window\" is invalid", *argv
);
318 } else if (strcmp(*argv
, "replay-seq") == 0) {
320 if (get_u32(&seq
, *argv
, 0))
321 invarg("value after \"replay-seq\" is invalid", *argv
);
322 } else if (strcmp(*argv
, "replay-seq-hi") == 0) {
324 if (get_u32(&seq_hi
, *argv
, 0))
325 invarg("value after \"replay-seq-hi\" is invalid", *argv
);
326 } else if (strcmp(*argv
, "replay-oseq") == 0) {
328 if (get_u32(&oseq
, *argv
, 0))
329 invarg("value after \"replay-oseq\" is invalid", *argv
);
330 } else if (strcmp(*argv
, "replay-oseq-hi") == 0) {
332 if (get_u32(&oseq_hi
, *argv
, 0))
333 invarg("value after \"replay-oseq-hi\" is invalid", *argv
);
334 } else if (strcmp(*argv
, "flag") == 0) {
336 xfrm_state_flag_parse(&req
.xsinfo
.flags
, &argc
, &argv
);
337 } else if (strcmp(*argv
, "extra-flag") == 0) {
339 xfrm_state_extra_flag_parse(&extra_flags
, &argc
, &argv
);
340 } else if (strcmp(*argv
, "sel") == 0) {
342 preferred_family
= AF_UNSPEC
;
343 xfrm_selector_parse(&req
.xsinfo
.sel
, &argc
, &argv
);
344 preferred_family
= req
.xsinfo
.sel
.family
;
345 } else if (strcmp(*argv
, "limit") == 0) {
347 xfrm_lifetime_cfg_parse(&req
.xsinfo
.lft
, &argc
, &argv
);
348 } else if (strcmp(*argv
, "encap") == 0) {
349 struct xfrm_encap_tmpl encap
;
352 xfrm_encap_type_parse(&encap
.encap_type
, &argc
, &argv
);
354 if (get_be16(&encap
.encap_sport
, *argv
, 0))
355 invarg("SPORT value after \"encap\" is invalid", *argv
);
357 if (get_be16(&encap
.encap_dport
, *argv
, 0))
358 invarg("DPORT value after \"encap\" is invalid", *argv
);
360 get_addr(&oa
, *argv
, AF_UNSPEC
);
361 memcpy(&encap
.encap_oa
, &oa
.data
, sizeof(encap
.encap_oa
));
362 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_ENCAP
,
363 (void *)&encap
, sizeof(encap
));
364 } else if (strcmp(*argv
, "coa") == 0) {
366 xfrm_address_t xcoa
= {};
369 duparg("coa", *argv
);
374 get_prefix(&coa
, *argv
, preferred_family
);
375 if (coa
.family
== AF_UNSPEC
)
376 invarg("value after \"coa\" has an unrecognized address family", *argv
);
377 if (coa
.bytelen
> sizeof(xcoa
))
378 invarg("value after \"coa\" is too large", *argv
);
380 memcpy(&xcoa
, &coa
.data
, coa
.bytelen
);
382 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_COADDR
,
383 (void *)&xcoa
, sizeof(xcoa
));
384 } else if (strcmp(*argv
, "ctx") == 0) {
388 duparg("ctx", *argv
);
394 xfrm_sctx_parse((char *)&ctx
.str
, context
, &ctx
.sctx
);
395 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_SEC_CTX
,
396 (void *)&ctx
, ctx
.sctx
.len
);
398 /* try to assume ALGO */
399 int type
= xfrm_algotype_getbyname(*argv
);
403 case XFRMA_ALG_CRYPT
:
405 case XFRMA_ALG_AUTH_TRUNC
:
411 struct xfrm_algo alg
;
412 struct xfrm_algo_aead aead
;
413 struct xfrm_algo_auth auth
;
415 char buf
[XFRM_ALGO_KEY_BUF_SIZE
];
418 __u32 icvlen
, trunclen
;
425 if (ealgop
|| aalgop
|| aeadop
)
426 duparg("ALGO-TYPE", *argv
);
429 case XFRMA_ALG_CRYPT
:
430 if (ealgop
|| aeadop
)
431 duparg("ALGO-TYPE", *argv
);
435 case XFRMA_ALG_AUTH_TRUNC
:
436 if (aalgop
|| aeadop
)
437 duparg("ALGO-TYPE", *argv
);
442 duparg("ALGO-TYPE", *argv
);
447 invarg("ALGO-TYPE value is invalid\n", *argv
);
451 missarg("ALGO-NAME");
457 case XFRMA_ALG_CRYPT
:
459 case XFRMA_ALG_AUTH_TRUNC
:
461 missarg("ALGO-KEYMAT");
467 buf
= alg
.u
.alg
.alg_key
;
468 len
= sizeof(alg
.u
.alg
);
473 missarg("ALGO-ICV-LEN");
475 if (get_u32(&icvlen
, *argv
, 0))
476 invarg("ALGO-ICV-LEN value is invalid",
478 alg
.u
.aead
.alg_icv_len
= icvlen
;
480 buf
= alg
.u
.aead
.alg_key
;
481 len
= sizeof(alg
.u
.aead
);
483 case XFRMA_ALG_AUTH_TRUNC
:
485 missarg("ALGO-TRUNC-LEN");
487 if (get_u32(&trunclen
, *argv
, 0))
488 invarg("ALGO-TRUNC-LEN value is invalid",
490 alg
.u
.auth
.alg_trunc_len
= trunclen
;
492 buf
= alg
.u
.auth
.alg_key
;
493 len
= sizeof(alg
.u
.auth
);
497 xfrm_algo_parse((void *)&alg
, type
, name
, key
,
498 buf
, sizeof(alg
.buf
));
499 len
+= alg
.u
.alg
.alg_key_len
;
501 addattr_l(&req
.n
, sizeof(req
.buf
), type
,
506 /* try to assume ID */
508 invarg("unknown", *argv
);
512 xfrm_id_parse(&req
.xsinfo
.saddr
, &req
.xsinfo
.id
,
513 &req
.xsinfo
.family
, 0, &argc
, &argv
);
514 if (preferred_family
== AF_UNSPEC
)
515 preferred_family
= req
.xsinfo
.family
;
521 if (req
.xsinfo
.flags
& XFRM_STATE_ESN
&&
522 replay_window
== 0) {
523 fprintf(stderr
, "Error: esn flag set without replay-window.\n");
527 if (replay_window
> XFRMA_REPLAY_ESN_MAX
) {
529 "Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
530 replay_window
, XFRMA_REPLAY_ESN_MAX
);
534 if (req
.xsinfo
.flags
& XFRM_STATE_ESN
||
535 replay_window
> (sizeof(replay
.bitmap
) * 8)) {
536 replay_esn
.seq
= seq
;
537 replay_esn
.oseq
= oseq
;
538 replay_esn
.seq_hi
= seq_hi
;
539 replay_esn
.oseq_hi
= oseq_hi
;
540 replay_esn
.replay_window
= replay_window
;
541 replay_esn
.bmp_len
= (replay_window
+ sizeof(__u32
) * 8 - 1) /
543 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_REPLAY_ESN_VAL
,
544 &replay_esn
, sizeof(replay_esn
));
549 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_REPLAY_VAL
,
550 &replay
, sizeof(replay
));
552 req
.xsinfo
.replay_window
= replay_window
;
556 addattr32(&req
.n
, sizeof(req
.buf
), XFRMA_SA_EXTRA_FLAGS
,
560 fprintf(stderr
, "Not enough information: ID is required\n");
565 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
566 (void *)&mark
, sizeof(mark
));
568 fprintf(stderr
, "XFRMA_MARK failed\n");
573 if (xfrm_xfrmproto_is_ipsec(req
.xsinfo
.id
.proto
)) {
574 switch (req
.xsinfo
.mode
) {
575 case XFRM_MODE_TRANSPORT
:
576 case XFRM_MODE_TUNNEL
:
579 if (req
.xsinfo
.id
.proto
== IPPROTO_ESP
)
582 fprintf(stderr
, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
583 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
587 switch (req
.xsinfo
.id
.proto
) {
590 fprintf(stderr
, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
591 strxf_algotype(XFRMA_ALG_COMP
),
592 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
595 if (!ealgop
&& !aeadop
) {
596 fprintf(stderr
, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
597 strxf_algotype(XFRMA_ALG_CRYPT
),
598 strxf_algotype(XFRMA_ALG_AEAD
),
599 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
604 if (ealgop
|| aeadop
|| calgop
) {
605 fprintf(stderr
, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
606 strxf_algotype(XFRMA_ALG_CRYPT
),
607 strxf_algotype(XFRMA_ALG_AEAD
),
608 strxf_algotype(XFRMA_ALG_COMP
),
609 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
613 fprintf(stderr
, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
614 strxf_algotype(XFRMA_ALG_AUTH
),
615 strxf_algotype(XFRMA_ALG_AUTH_TRUNC
),
616 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
621 if (ealgop
|| aalgop
|| aeadop
) {
622 fprintf(stderr
, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
623 strxf_algotype(XFRMA_ALG_CRYPT
),
624 strxf_algotype(XFRMA_ALG_AUTH
),
625 strxf_algotype(XFRMA_ALG_AUTH_TRUNC
),
626 strxf_algotype(XFRMA_ALG_AEAD
),
627 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
631 fprintf(stderr
, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
632 strxf_algotype(XFRMA_ALG_COMP
),
633 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
639 if (ealgop
|| aalgop
|| aeadop
|| calgop
) {
640 fprintf(stderr
, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
641 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
646 if (xfrm_xfrmproto_is_ro(req
.xsinfo
.id
.proto
)) {
647 switch (req
.xsinfo
.mode
) {
648 case XFRM_MODE_ROUTEOPTIMIZATION
:
649 case XFRM_MODE_IN_TRIGGER
:
652 fprintf(stderr
, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
653 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
656 fprintf(stderr
, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
657 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
662 fprintf(stderr
, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
663 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
668 fprintf(stderr
, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
669 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
674 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
677 if (req
.xsinfo
.family
== AF_UNSPEC
)
678 req
.xsinfo
.family
= AF_INET
;
680 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
688 static int xfrm_state_allocspi(int argc
, char **argv
)
690 struct rtnl_handle rth
;
693 struct xfrm_userspi_info xspi
;
694 char buf
[RTA_BUF_SIZE
];
696 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xspi
)),
697 .n
.nlmsg_flags
= NLM_F_REQUEST
,
698 .n
.nlmsg_type
= XFRM_MSG_ALLOCSPI
,
699 .xspi
.info
.family
= preferred_family
,
701 .xspi
.lft
.soft_byte_limit
= XFRM_INF
,
702 .xspi
.lft
.hard_byte_limit
= XFRM_INF
,
703 .xspi
.lft
.soft_packet_limit
= XFRM_INF
,
704 .xspi
.lft
.hard_packet_limit
= XFRM_INF
,
710 struct xfrm_mark mark
= {0, 0};
711 char res_buf
[NLMSG_BUF_SIZE
] = {};
712 struct nlmsghdr
*res_n
= (struct nlmsghdr
*)res_buf
;
715 if (strcmp(*argv
, "mode") == 0) {
717 xfrm_mode_parse(&req
.xspi
.info
.mode
, &argc
, &argv
);
718 } else if (strcmp(*argv
, "mark") == 0) {
719 xfrm_parse_mark(&mark
, &argc
, &argv
);
720 } else if (strcmp(*argv
, "reqid") == 0) {
722 xfrm_reqid_parse(&req
.xspi
.info
.reqid
, &argc
, &argv
);
723 } else if (strcmp(*argv
, "seq") == 0) {
725 xfrm_seq_parse(&req
.xspi
.info
.seq
, &argc
, &argv
);
726 } else if (strcmp(*argv
, "min") == 0) {
728 duparg("min", *argv
);
733 if (get_u32(&req
.xspi
.min
, *argv
, 0))
734 invarg("value after \"min\" is invalid", *argv
);
735 } else if (strcmp(*argv
, "max") == 0) {
737 duparg("max", *argv
);
742 if (get_u32(&req
.xspi
.max
, *argv
, 0))
743 invarg("value after \"max\" is invalid", *argv
);
745 /* try to assume ID */
747 invarg("unknown", *argv
);
751 xfrm_id_parse(&req
.xspi
.info
.saddr
, &req
.xspi
.info
.id
,
752 &req
.xspi
.info
.family
, 0, &argc
, &argv
);
753 if (req
.xspi
.info
.id
.spi
) {
754 fprintf(stderr
, "\"spi\" is invalid\n");
757 if (preferred_family
== AF_UNSPEC
)
758 preferred_family
= req
.xspi
.info
.family
;
764 fprintf(stderr
, "Not enough information: ID is required\n");
770 fprintf(stderr
, "\"max\" is missing\n");
773 if (req
.xspi
.min
> req
.xspi
.max
) {
774 fprintf(stderr
, "value after \"min\" is larger than value after \"max\"\n");
779 fprintf(stderr
, "\"min\" is missing\n");
783 /* XXX: Default value defined in PF_KEY;
784 * See kernel's net/key/af_key.c(pfkey_getspi).
786 req
.xspi
.min
= 0x100;
787 req
.xspi
.max
= 0x0fffffff;
789 /* XXX: IPCOMP spi is 16-bits;
790 * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
792 if (req
.xspi
.info
.id
.proto
== IPPROTO_COMP
)
793 req
.xspi
.max
= 0xffff;
796 if (mark
.m
& mark
.v
) {
797 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
798 (void *)&mark
, sizeof(mark
));
800 fprintf(stderr
, "XFRMA_MARK failed\n");
805 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
808 if (req
.xspi
.info
.family
== AF_UNSPEC
)
809 req
.xspi
.info
.family
= AF_INET
;
812 if (rtnl_talk(&rth
, &req
.n
, res_n
, sizeof(res_buf
)) < 0)
815 if (xfrm_state_print(NULL
, res_n
, (void *)stdout
) < 0) {
816 fprintf(stderr
, "An error :-)\n");
825 static int xfrm_state_filter_match(struct xfrm_usersa_info
*xsinfo
)
830 if (filter
.id_src_mask
)
831 if (xfrm_addr_match(&xsinfo
->saddr
, &filter
.xsinfo
.saddr
,
834 if (filter
.id_dst_mask
)
835 if (xfrm_addr_match(&xsinfo
->id
.daddr
, &filter
.xsinfo
.id
.daddr
,
838 if ((xsinfo
->id
.proto
^filter
.xsinfo
.id
.proto
)&filter
.id_proto_mask
)
840 if ((xsinfo
->id
.spi
^filter
.xsinfo
.id
.spi
)&filter
.id_spi_mask
)
842 if ((xsinfo
->mode
^filter
.xsinfo
.mode
)&filter
.mode_mask
)
844 if ((xsinfo
->reqid
^filter
.xsinfo
.reqid
)&filter
.reqid_mask
)
846 if (filter
.state_flags_mask
)
847 if ((xsinfo
->flags
& filter
.xsinfo
.flags
) == 0)
853 int xfrm_state_print(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
,
856 FILE *fp
= (FILE *)arg
;
857 struct rtattr
*tb
[XFRMA_MAX
+1];
859 struct xfrm_usersa_info
*xsinfo
= NULL
;
860 struct xfrm_user_expire
*xexp
= NULL
;
861 struct xfrm_usersa_id
*xsid
= NULL
;
862 int len
= n
->nlmsg_len
;
864 if (n
->nlmsg_type
!= XFRM_MSG_NEWSA
&&
865 n
->nlmsg_type
!= XFRM_MSG_DELSA
&&
866 n
->nlmsg_type
!= XFRM_MSG_UPDSA
&&
867 n
->nlmsg_type
!= XFRM_MSG_EXPIRE
) {
868 fprintf(stderr
, "Not a state: %08x %08x %08x\n",
869 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
873 if (n
->nlmsg_type
== XFRM_MSG_DELSA
) {
874 /* Dont blame me for this .. Herbert made me do it */
875 xsid
= NLMSG_DATA(n
);
876 len
-= NLMSG_SPACE(sizeof(*xsid
));
877 } else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
) {
878 xexp
= NLMSG_DATA(n
);
879 xsinfo
= &xexp
->state
;
880 len
-= NLMSG_SPACE(sizeof(*xexp
));
883 xsinfo
= NLMSG_DATA(n
);
884 len
-= NLMSG_SPACE(sizeof(*xsinfo
));
888 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
892 if (xsinfo
&& !xfrm_state_filter_match(xsinfo
))
895 if (n
->nlmsg_type
== XFRM_MSG_DELSA
)
896 fprintf(fp
, "Deleted ");
897 else if (n
->nlmsg_type
== XFRM_MSG_UPDSA
)
898 fprintf(fp
, "Updated ");
899 else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
)
900 fprintf(fp
, "Expired ");
902 if (n
->nlmsg_type
== XFRM_MSG_DELSA
)
903 rta
= XFRMSID_RTA(xsid
);
904 else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
)
905 rta
= XFRMEXP_RTA(xexp
);
907 rta
= XFRMS_RTA(xsinfo
);
909 parse_rtattr(tb
, XFRMA_MAX
, rta
, len
);
911 if (n
->nlmsg_type
== XFRM_MSG_DELSA
) {
912 /* xfrm_policy_id_print(); */
915 fprintf(stderr
, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
918 if (RTA_PAYLOAD(tb
[XFRMA_SA
]) < sizeof(*xsinfo
)) {
919 fprintf(stderr
, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
922 xsinfo
= RTA_DATA(tb
[XFRMA_SA
]);
925 xfrm_state_info_print(xsinfo
, tb
, fp
, NULL
, NULL
);
927 if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
) {
929 fprintf(fp
, "hard %u", xexp
->hard
);
930 fprintf(fp
, "%s", _SL_
);
940 static int xfrm_state_get_or_delete(int argc
, char **argv
, int delete)
942 struct rtnl_handle rth
;
945 struct xfrm_usersa_id xsid
;
946 char buf
[RTA_BUF_SIZE
];
948 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsid
)),
949 .n
.nlmsg_flags
= NLM_F_REQUEST
,
950 .n
.nlmsg_type
= delete ? XFRM_MSG_DELSA
: XFRM_MSG_GETSA
,
951 .xsid
.family
= preferred_family
,
955 struct xfrm_mark mark
= {0, 0};
958 xfrm_address_t saddr
;
960 if (strcmp(*argv
, "mark") == 0) {
961 xfrm_parse_mark(&mark
, &argc
, &argv
);
964 invarg("unknown", *argv
);
968 memset(&id
, 0, sizeof(id
));
969 memset(&saddr
, 0, sizeof(saddr
));
970 xfrm_id_parse(&saddr
, &id
, &req
.xsid
.family
, 0,
973 memcpy(&req
.xsid
.daddr
, &id
.daddr
, sizeof(req
.xsid
.daddr
));
974 req
.xsid
.spi
= id
.spi
;
975 req
.xsid
.proto
= id
.proto
;
977 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_SRCADDR
,
978 (void *)&saddr
, sizeof(saddr
));
984 if (mark
.m
& mark
.v
) {
985 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
986 (void *)&mark
, sizeof(mark
));
988 fprintf(stderr
, "XFRMA_MARK failed\n");
993 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
996 if (req
.xsid
.family
== AF_UNSPEC
)
997 req
.xsid
.family
= AF_INET
;
1000 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
1003 char buf
[NLMSG_BUF_SIZE
] = {};
1004 struct nlmsghdr
*res_n
= (struct nlmsghdr
*)buf
;
1006 if (rtnl_talk(&rth
, &req
.n
, res_n
, sizeof(req
)) < 0)
1009 if (xfrm_state_print(NULL
, res_n
, (void *)stdout
) < 0) {
1010 fprintf(stderr
, "An error :-)\n");
1021 * With an existing state of nlmsg, make new nlmsg for deleting the state
1022 * and store it to buffer.
1024 static int xfrm_state_keep(const struct sockaddr_nl
*who
,
1028 struct xfrm_buffer
*xb
= (struct xfrm_buffer
*)arg
;
1029 struct rtnl_handle
*rth
= xb
->rth
;
1030 struct xfrm_usersa_info
*xsinfo
= NLMSG_DATA(n
);
1031 int len
= n
->nlmsg_len
;
1032 struct nlmsghdr
*new_n
;
1033 struct xfrm_usersa_id
*xsid
;
1035 if (n
->nlmsg_type
!= XFRM_MSG_NEWSA
) {
1036 fprintf(stderr
, "Not a state: %08x %08x %08x\n",
1037 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
1041 len
-= NLMSG_LENGTH(sizeof(*xsinfo
));
1043 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
1047 if (!xfrm_state_filter_match(xsinfo
))
1050 if (xb
->offset
> xb
->size
) {
1051 fprintf(stderr
, "State buffer overflow\n");
1055 new_n
= (struct nlmsghdr
*)(xb
->buf
+ xb
->offset
);
1056 new_n
->nlmsg_len
= NLMSG_LENGTH(sizeof(*xsid
));
1057 new_n
->nlmsg_flags
= NLM_F_REQUEST
;
1058 new_n
->nlmsg_type
= XFRM_MSG_DELSA
;
1059 new_n
->nlmsg_seq
= ++rth
->seq
;
1061 xsid
= NLMSG_DATA(new_n
);
1062 xsid
->family
= xsinfo
->family
;
1063 memcpy(&xsid
->daddr
, &xsinfo
->id
.daddr
, sizeof(xsid
->daddr
));
1064 xsid
->spi
= xsinfo
->id
.spi
;
1065 xsid
->proto
= xsinfo
->id
.proto
;
1067 addattr_l(new_n
, xb
->size
, XFRMA_SRCADDR
, &xsinfo
->saddr
,
1068 sizeof(xsid
->daddr
));
1070 xb
->offset
+= new_n
->nlmsg_len
;
1076 static int xfrm_state_list_or_deleteall(int argc
, char **argv
, int deleteall
)
1079 struct rtnl_handle rth
;
1083 filter
.xsinfo
.family
= preferred_family
;
1086 if (strcmp(*argv
, "mode") == 0) {
1088 xfrm_mode_parse(&filter
.xsinfo
.mode
, &argc
, &argv
);
1090 filter
.mode_mask
= XFRM_FILTER_MASK_FULL
;
1092 } else if (strcmp(*argv
, "reqid") == 0) {
1094 xfrm_reqid_parse(&filter
.xsinfo
.reqid
, &argc
, &argv
);
1096 filter
.reqid_mask
= XFRM_FILTER_MASK_FULL
;
1098 } else if (strcmp(*argv
, "flag") == 0) {
1100 xfrm_state_flag_parse(&filter
.xsinfo
.flags
, &argc
, &argv
);
1102 filter
.state_flags_mask
= XFRM_FILTER_MASK_FULL
;
1106 invarg("unknown", *argv
);
1110 xfrm_id_parse(&filter
.xsinfo
.saddr
, &filter
.xsinfo
.id
,
1111 &filter
.xsinfo
.family
, 1, &argc
, &argv
);
1112 if (preferred_family
== AF_UNSPEC
)
1113 preferred_family
= filter
.xsinfo
.family
;
1118 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1122 struct xfrm_buffer xb
;
1123 char buf
[NLMSG_DELETEALL_BUF_SIZE
];
1127 xb
.size
= sizeof(buf
);
1130 for (i
= 0; ; i
++) {
1133 char buf
[NLMSG_BUF_SIZE
];
1135 .n
.nlmsg_len
= NLMSG_HDRLEN
,
1136 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
1137 .n
.nlmsg_type
= XFRM_MSG_GETSA
,
1138 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
1145 fprintf(stderr
, "Delete-all round = %d\n", i
);
1147 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
1148 perror("Cannot send dump request");
1152 if (rtnl_dump_filter(&rth
, xfrm_state_keep
, &xb
) < 0) {
1153 fprintf(stderr
, "Delete-all terminated\n");
1156 if (xb
.nlmsg_count
== 0) {
1158 fprintf(stderr
, "Delete-all completed\n");
1162 if (rtnl_send_check(&rth
, xb
.buf
, xb
.offset
) < 0) {
1163 perror("Failed to send delete-all request\n");
1167 fprintf(stderr
, "Delete-all nlmsg count = %d\n", xb
.nlmsg_count
);
1174 struct xfrm_address_filter addrfilter
= {
1175 .saddr
= filter
.xsinfo
.saddr
,
1176 .daddr
= filter
.xsinfo
.id
.daddr
,
1177 .family
= filter
.xsinfo
.family
,
1178 .splen
= filter
.id_src_mask
,
1179 .dplen
= filter
.id_dst_mask
,
1183 char buf
[NLMSG_BUF_SIZE
];
1185 .n
.nlmsg_len
= NLMSG_HDRLEN
,
1186 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
1187 .n
.nlmsg_type
= XFRM_MSG_GETSA
,
1188 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
1191 if (filter
.xsinfo
.id
.proto
)
1192 addattr8(&req
.n
, sizeof(req
), XFRMA_PROTO
,
1193 filter
.xsinfo
.id
.proto
);
1194 addattr_l(&req
.n
, sizeof(req
), XFRMA_ADDRESS_FILTER
,
1195 &addrfilter
, sizeof(addrfilter
));
1197 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
1198 perror("Cannot send dump request");
1202 if (rtnl_dump_filter(&rth
, xfrm_state_print
, stdout
) < 0) {
1203 fprintf(stderr
, "Dump terminated\n");
1213 static int print_sadinfo(struct nlmsghdr
*n
, void *arg
)
1215 FILE *fp
= (FILE *)arg
;
1216 __u32
*f
= NLMSG_DATA(n
);
1217 struct rtattr
*tb
[XFRMA_SAD_MAX
+1];
1221 int len
= n
->nlmsg_len
;
1223 len
-= NLMSG_LENGTH(sizeof(__u32
));
1225 fprintf(stderr
, "SADinfo: Wrong len %d\n", len
);
1229 rta
= XFRMSAPD_RTA(f
);
1230 parse_rtattr(tb
, XFRMA_SAD_MAX
, rta
, len
);
1232 if (tb
[XFRMA_SAD_CNT
]) {
1233 fprintf(fp
, "\t SAD");
1234 cnt
= (__u32
*)RTA_DATA(tb
[XFRMA_SAD_CNT
]);
1235 fprintf(fp
, " count %d", *cnt
);
1237 fprintf(fp
, "BAD SAD info returned\n");
1242 if (tb
[XFRMA_SAD_HINFO
]) {
1243 struct xfrmu_sadhinfo
*si
;
1245 if (RTA_PAYLOAD(tb
[XFRMA_SAD_HINFO
]) < sizeof(*si
)) {
1246 fprintf(fp
, "BAD SAD length returned\n");
1250 si
= RTA_DATA(tb
[XFRMA_SAD_HINFO
]);
1251 fprintf(fp
, " (buckets ");
1252 fprintf(fp
, "count %d", si
->sadhcnt
);
1253 fprintf(fp
, " Max %d", si
->sadhmcnt
);
1262 static int xfrm_sad_getinfo(int argc
, char **argv
)
1264 struct rtnl_handle rth
;
1270 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.flags
)),
1271 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1272 .n
.nlmsg_type
= XFRM_MSG_GETSADINFO
,
1273 .flags
= 0XFFFFFFFF,
1276 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1279 if (rtnl_talk(&rth
, &req
.n
, &req
.n
, sizeof(req
)) < 0)
1282 print_sadinfo(&req
.n
, (void *)stdout
);
1289 static int xfrm_state_flush(int argc
, char **argv
)
1291 struct rtnl_handle rth
;
1294 struct xfrm_usersa_flush xsf
;
1296 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsf
)),
1297 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1298 .n
.nlmsg_type
= XFRM_MSG_FLUSHSA
,
1300 char *protop
= NULL
;
1303 if (strcmp(*argv
, "proto") == 0) {
1307 duparg("proto", *argv
);
1312 ret
= xfrm_xfrmproto_getbyname(*argv
);
1314 invarg("XFRM-PROTO value is invalid", *argv
);
1316 req
.xsf
.proto
= (__u8
)ret
;
1318 invarg("unknown", *argv
);
1323 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1327 fprintf(stderr
, "Flush state with XFRM-PROTO value \"%s\"\n",
1328 strxf_xfrmproto(req
.xsf
.proto
));
1330 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
1338 int do_xfrm_state(int argc
, char **argv
)
1341 return xfrm_state_list_or_deleteall(0, NULL
, 0);
1343 if (matches(*argv
, "add") == 0)
1344 return xfrm_state_modify(XFRM_MSG_NEWSA
, 0,
1346 if (matches(*argv
, "update") == 0)
1347 return xfrm_state_modify(XFRM_MSG_UPDSA
, 0,
1349 if (matches(*argv
, "allocspi") == 0)
1350 return xfrm_state_allocspi(argc
-1, argv
+1);
1351 if (matches(*argv
, "delete") == 0)
1352 return xfrm_state_get_or_delete(argc
-1, argv
+1, 1);
1353 if (matches(*argv
, "deleteall") == 0 || matches(*argv
, "delall") == 0)
1354 return xfrm_state_list_or_deleteall(argc
-1, argv
+1, 1);
1355 if (matches(*argv
, "list") == 0 || matches(*argv
, "show") == 0
1356 || matches(*argv
, "lst") == 0)
1357 return xfrm_state_list_or_deleteall(argc
-1, argv
+1, 0);
1358 if (matches(*argv
, "get") == 0)
1359 return xfrm_state_get_or_delete(argc
-1, argv
+1, 0);
1360 if (matches(*argv
, "flush") == 0)
1361 return xfrm_state_flush(argc
-1, argv
+1);
1362 if (matches(*argv
, "count") == 0) {
1363 return xfrm_sad_getinfo(argc
, argv
);
1365 if (matches(*argv
, "help") == 0)
1367 fprintf(stderr
, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv
);