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_u32(seq
, *argv
, 0))
179 invarg("SEQ value is invalid", *argv
);
189 static int xfrm_state_flag_parse(__u8
*flags
, int *argcp
, char ***argvp
)
192 char **argv
= *argvp
;
193 int len
= strlen(*argv
);
195 if (len
> 2 && strncmp(*argv
, "0x", 2) == 0) {
198 if (get_u8(&val
, *argv
, 16))
199 invarg("FLAG value is invalid", *argv
);
203 if (strcmp(*argv
, "noecn") == 0)
204 *flags
|= XFRM_STATE_NOECN
;
205 else if (strcmp(*argv
, "decap-dscp") == 0)
206 *flags
|= XFRM_STATE_DECAP_DSCP
;
207 else if (strcmp(*argv
, "nopmtudisc") == 0)
208 *flags
|= XFRM_STATE_NOPMTUDISC
;
209 else if (strcmp(*argv
, "wildrecv") == 0)
210 *flags
|= XFRM_STATE_WILDRECV
;
211 else if (strcmp(*argv
, "icmp") == 0)
212 *flags
|= XFRM_STATE_ICMP
;
213 else if (strcmp(*argv
, "af-unspec") == 0)
214 *flags
|= XFRM_STATE_AF_UNSPEC
;
215 else if (strcmp(*argv
, "align4") == 0)
216 *flags
|= XFRM_STATE_ALIGN4
;
217 else if (strcmp(*argv
, "esn") == 0)
218 *flags
|= XFRM_STATE_ESN
;
220 PREV_ARG(); /* back track */
236 static int xfrm_state_extra_flag_parse(__u32
*extra_flags
, int *argcp
, char ***argvp
)
239 char **argv
= *argvp
;
240 int len
= strlen(*argv
);
242 if (len
> 2 && strncmp(*argv
, "0x", 2) == 0) {
245 if (get_u32(&val
, *argv
, 16))
246 invarg("\"EXTRA-FLAG\" is invalid", *argv
);
250 if (strcmp(*argv
, "dont-encap-dscp") == 0)
251 *extra_flags
|= XFRM_SA_XFLAG_DONT_ENCAP_DSCP
;
253 PREV_ARG(); /* back track */
269 static int xfrm_state_modify(int cmd
, unsigned int flags
, int argc
, char **argv
)
271 struct rtnl_handle rth
;
274 struct xfrm_usersa_info xsinfo
;
275 char buf
[RTA_BUF_SIZE
];
277 struct xfrm_replay_state replay
;
278 struct xfrm_replay_state_esn replay_esn
;
279 __u32 replay_window
= 0;
280 __u32 seq
= 0, oseq
= 0, seq_hi
= 0, oseq_hi
= 0;
288 __u32 extra_flags
= 0;
289 struct xfrm_mark mark
= {0, 0};
291 struct xfrm_user_sec_ctx sctx
;
292 char str
[CTX_BUF_SIZE
];
295 memset(&req
, 0, sizeof(req
));
296 memset(&replay
, 0, sizeof(replay
));
297 memset(&replay_esn
, 0, sizeof(replay_esn
));
298 memset(&ctx
, 0, sizeof(ctx
));
300 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsinfo
));
301 req
.n
.nlmsg_flags
= NLM_F_REQUEST
|flags
;
302 req
.n
.nlmsg_type
= cmd
;
303 req
.xsinfo
.family
= preferred_family
;
305 req
.xsinfo
.lft
.soft_byte_limit
= XFRM_INF
;
306 req
.xsinfo
.lft
.hard_byte_limit
= XFRM_INF
;
307 req
.xsinfo
.lft
.soft_packet_limit
= XFRM_INF
;
308 req
.xsinfo
.lft
.hard_packet_limit
= XFRM_INF
;
311 if (strcmp(*argv
, "mode") == 0) {
313 xfrm_mode_parse(&req
.xsinfo
.mode
, &argc
, &argv
);
314 } else if (strcmp(*argv
, "mark") == 0) {
315 xfrm_parse_mark(&mark
, &argc
, &argv
);
316 } else if (strcmp(*argv
, "reqid") == 0) {
318 xfrm_reqid_parse(&req
.xsinfo
.reqid
, &argc
, &argv
);
319 } else if (strcmp(*argv
, "seq") == 0) {
321 xfrm_seq_parse(&req
.xsinfo
.seq
, &argc
, &argv
);
322 } else if (strcmp(*argv
, "replay-window") == 0) {
324 if (get_u32(&replay_window
, *argv
, 0))
325 invarg("value after \"replay-window\" is invalid", *argv
);
326 } else if (strcmp(*argv
, "replay-seq") == 0) {
328 if (get_u32(&seq
, *argv
, 0))
329 invarg("value after \"replay-seq\" is invalid", *argv
);
330 } else if (strcmp(*argv
, "replay-seq-hi") == 0) {
332 if (get_u32(&seq_hi
, *argv
, 0))
333 invarg("value after \"replay-seq-hi\" is invalid", *argv
);
334 } else if (strcmp(*argv
, "replay-oseq") == 0) {
336 if (get_u32(&oseq
, *argv
, 0))
337 invarg("value after \"replay-oseq\" is invalid", *argv
);
338 } else if (strcmp(*argv
, "replay-oseq-hi") == 0) {
340 if (get_u32(&oseq_hi
, *argv
, 0))
341 invarg("value after \"replay-oseq-hi\" is invalid", *argv
);
342 } else if (strcmp(*argv
, "flag") == 0) {
344 xfrm_state_flag_parse(&req
.xsinfo
.flags
, &argc
, &argv
);
345 } else if (strcmp(*argv
, "extra-flag") == 0) {
347 xfrm_state_extra_flag_parse(&extra_flags
, &argc
, &argv
);
348 } else if (strcmp(*argv
, "sel") == 0) {
350 preferred_family
= AF_UNSPEC
;
351 xfrm_selector_parse(&req
.xsinfo
.sel
, &argc
, &argv
);
352 preferred_family
= req
.xsinfo
.sel
.family
;
353 } else if (strcmp(*argv
, "limit") == 0) {
355 xfrm_lifetime_cfg_parse(&req
.xsinfo
.lft
, &argc
, &argv
);
356 } else if (strcmp(*argv
, "encap") == 0) {
357 struct xfrm_encap_tmpl encap
;
360 xfrm_encap_type_parse(&encap
.encap_type
, &argc
, &argv
);
362 if (get_u16(&encap
.encap_sport
, *argv
, 0))
363 invarg("SPORT value after \"encap\" is invalid", *argv
);
364 encap
.encap_sport
= htons(encap
.encap_sport
);
366 if (get_u16(&encap
.encap_dport
, *argv
, 0))
367 invarg("DPORT value after \"encap\" is invalid", *argv
);
368 encap
.encap_dport
= htons(encap
.encap_dport
);
370 get_addr(&oa
, *argv
, AF_UNSPEC
);
371 memcpy(&encap
.encap_oa
, &oa
.data
, sizeof(encap
.encap_oa
));
372 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_ENCAP
,
373 (void *)&encap
, sizeof(encap
));
374 } else if (strcmp(*argv
, "coa") == 0) {
379 duparg("coa", *argv
);
384 get_prefix(&coa
, *argv
, preferred_family
);
385 if (coa
.family
== AF_UNSPEC
)
386 invarg("value after \"coa\" has an unrecognized address family", *argv
);
387 if (coa
.bytelen
> sizeof(xcoa
))
388 invarg("value after \"coa\" is too large", *argv
);
390 memset(&xcoa
, 0, sizeof(xcoa
));
391 memcpy(&xcoa
, &coa
.data
, coa
.bytelen
);
393 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_COADDR
,
394 (void *)&xcoa
, sizeof(xcoa
));
395 } else if (strcmp(*argv
, "ctx") == 0) {
399 duparg("ctx", *argv
);
405 xfrm_sctx_parse((char *)&ctx
.str
, context
, &ctx
.sctx
);
406 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_SEC_CTX
,
407 (void *)&ctx
, ctx
.sctx
.len
);
409 /* try to assume ALGO */
410 int type
= xfrm_algotype_getbyname(*argv
);
414 case XFRMA_ALG_CRYPT
:
416 case XFRMA_ALG_AUTH_TRUNC
:
422 struct xfrm_algo alg
;
423 struct xfrm_algo_aead aead
;
424 struct xfrm_algo_auth auth
;
426 char buf
[XFRM_ALGO_KEY_BUF_SIZE
];
429 __u32 icvlen
, trunclen
;
436 if (ealgop
|| aalgop
|| aeadop
)
437 duparg("ALGO-TYPE", *argv
);
440 case XFRMA_ALG_CRYPT
:
441 if (ealgop
|| aeadop
)
442 duparg("ALGO-TYPE", *argv
);
446 case XFRMA_ALG_AUTH_TRUNC
:
447 if (aalgop
|| aeadop
)
448 duparg("ALGO-TYPE", *argv
);
453 duparg("ALGO-TYPE", *argv
);
458 invarg("ALGO-TYPE value is invalid\n", *argv
);
462 missarg("ALGO-NAME");
468 case XFRMA_ALG_CRYPT
:
470 case XFRMA_ALG_AUTH_TRUNC
:
472 missarg("ALGO-KEYMAT");
478 buf
= alg
.u
.alg
.alg_key
;
479 len
= sizeof(alg
.u
.alg
);
484 missarg("ALGO-ICV-LEN");
486 if (get_u32(&icvlen
, *argv
, 0))
487 invarg("ALGO-ICV-LEN value is invalid",
489 alg
.u
.aead
.alg_icv_len
= icvlen
;
491 buf
= alg
.u
.aead
.alg_key
;
492 len
= sizeof(alg
.u
.aead
);
494 case XFRMA_ALG_AUTH_TRUNC
:
496 missarg("ALGO-TRUNC-LEN");
498 if (get_u32(&trunclen
, *argv
, 0))
499 invarg("ALGO-TRUNC-LEN value is invalid",
501 alg
.u
.auth
.alg_trunc_len
= trunclen
;
503 buf
= alg
.u
.auth
.alg_key
;
504 len
= sizeof(alg
.u
.auth
);
508 xfrm_algo_parse((void *)&alg
, type
, name
, key
,
509 buf
, sizeof(alg
.buf
));
510 len
+= alg
.u
.alg
.alg_key_len
;
512 addattr_l(&req
.n
, sizeof(req
.buf
), type
,
517 /* try to assume ID */
519 invarg("unknown", *argv
);
523 xfrm_id_parse(&req
.xsinfo
.saddr
, &req
.xsinfo
.id
,
524 &req
.xsinfo
.family
, 0, &argc
, &argv
);
525 if (preferred_family
== AF_UNSPEC
)
526 preferred_family
= req
.xsinfo
.family
;
532 if (req
.xsinfo
.flags
& XFRM_STATE_ESN
&&
533 replay_window
== 0) {
534 fprintf(stderr
, "Error: esn flag set without replay-window.\n");
538 if (replay_window
> XFRMA_REPLAY_ESN_MAX
) {
540 "Error: replay-window (%u) > XFRMA_REPLAY_ESN_MAX (%u).\n",
541 replay_window
, XFRMA_REPLAY_ESN_MAX
);
545 if (req
.xsinfo
.flags
& XFRM_STATE_ESN
||
546 replay_window
> (sizeof(replay
.bitmap
) * 8)) {
547 replay_esn
.seq
= seq
;
548 replay_esn
.oseq
= oseq
;
549 replay_esn
.seq_hi
= seq_hi
;
550 replay_esn
.oseq_hi
= oseq_hi
;
551 replay_esn
.replay_window
= replay_window
;
552 replay_esn
.bmp_len
= (replay_window
+ sizeof(__u32
) * 8 - 1) /
554 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_REPLAY_ESN_VAL
,
555 &replay_esn
, sizeof(replay_esn
));
560 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_REPLAY_VAL
,
561 &replay
, sizeof(replay
));
563 req
.xsinfo
.replay_window
= replay_window
;
567 addattr32(&req
.n
, sizeof(req
.buf
), XFRMA_SA_EXTRA_FLAGS
,
571 fprintf(stderr
, "Not enough information: ID is required\n");
576 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
577 (void *)&mark
, sizeof(mark
));
579 fprintf(stderr
, "XFRMA_MARK failed\n");
584 if (xfrm_xfrmproto_is_ipsec(req
.xsinfo
.id
.proto
)) {
585 switch (req
.xsinfo
.mode
) {
586 case XFRM_MODE_TRANSPORT
:
587 case XFRM_MODE_TUNNEL
:
590 if (req
.xsinfo
.id
.proto
== IPPROTO_ESP
)
593 fprintf(stderr
, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
594 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
598 switch (req
.xsinfo
.id
.proto
) {
601 fprintf(stderr
, "ALGO-TYPE value \"%s\" is invalid with XFRM-PROTO value \"%s\"\n",
602 strxf_algotype(XFRMA_ALG_COMP
),
603 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
606 if (!ealgop
&& !aeadop
) {
607 fprintf(stderr
, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
608 strxf_algotype(XFRMA_ALG_CRYPT
),
609 strxf_algotype(XFRMA_ALG_AEAD
),
610 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
615 if (ealgop
|| aeadop
|| calgop
) {
616 fprintf(stderr
, "ALGO-TYPE values \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
617 strxf_algotype(XFRMA_ALG_CRYPT
),
618 strxf_algotype(XFRMA_ALG_AEAD
),
619 strxf_algotype(XFRMA_ALG_COMP
),
620 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
624 fprintf(stderr
, "ALGO-TYPE value \"%s\" or \"%s\" is required with XFRM-PROTO value \"%s\"\n",
625 strxf_algotype(XFRMA_ALG_AUTH
),
626 strxf_algotype(XFRMA_ALG_AUTH_TRUNC
),
627 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
632 if (ealgop
|| aalgop
|| aeadop
) {
633 fprintf(stderr
, "ALGO-TYPE values \"%s\", \"%s\", \"%s\", and \"%s\" are invalid with XFRM-PROTO value \"%s\"\n",
634 strxf_algotype(XFRMA_ALG_CRYPT
),
635 strxf_algotype(XFRMA_ALG_AUTH
),
636 strxf_algotype(XFRMA_ALG_AUTH_TRUNC
),
637 strxf_algotype(XFRMA_ALG_AEAD
),
638 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
642 fprintf(stderr
, "ALGO-TYPE value \"%s\" is required with XFRM-PROTO value \"%s\"\n",
643 strxf_algotype(XFRMA_ALG_COMP
),
644 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
650 if (ealgop
|| aalgop
|| aeadop
|| calgop
) {
651 fprintf(stderr
, "ALGO is invalid with XFRM-PROTO value \"%s\"\n",
652 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
657 if (xfrm_xfrmproto_is_ro(req
.xsinfo
.id
.proto
)) {
658 switch (req
.xsinfo
.mode
) {
659 case XFRM_MODE_ROUTEOPTIMIZATION
:
660 case XFRM_MODE_IN_TRIGGER
:
663 fprintf(stderr
, "\"mode\" is required with XFRM-PROTO value \"%s\"\n",
664 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
667 fprintf(stderr
, "MODE value is invalid with XFRM-PROTO value \"%s\"\n",
668 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
673 fprintf(stderr
, "\"coa\" is required with XFRM-PROTO value \"%s\"\n",
674 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
679 fprintf(stderr
, "\"coa\" is invalid with XFRM-PROTO value \"%s\"\n",
680 strxf_xfrmproto(req
.xsinfo
.id
.proto
));
685 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
688 if (req
.xsinfo
.family
== AF_UNSPEC
)
689 req
.xsinfo
.family
= AF_INET
;
691 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
699 static int xfrm_state_allocspi(int argc
, char **argv
)
701 struct rtnl_handle rth
;
704 struct xfrm_userspi_info xspi
;
705 char buf
[RTA_BUF_SIZE
];
710 struct xfrm_mark mark
= {0, 0};
711 char res_buf
[NLMSG_BUF_SIZE
];
712 struct nlmsghdr
*res_n
= (struct nlmsghdr
*)res_buf
;
714 memset(res_buf
, 0, sizeof(res_buf
));
716 memset(&req
, 0, sizeof(req
));
718 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xspi
));
719 req
.n
.nlmsg_flags
= NLM_F_REQUEST
;
720 req
.n
.nlmsg_type
= XFRM_MSG_ALLOCSPI
;
721 req
.xspi
.info
.family
= preferred_family
;
724 req
.xsinfo
.lft
.soft_byte_limit
= XFRM_INF
;
725 req
.xsinfo
.lft
.hard_byte_limit
= XFRM_INF
;
726 req
.xsinfo
.lft
.soft_packet_limit
= XFRM_INF
;
727 req
.xsinfo
.lft
.hard_packet_limit
= XFRM_INF
;
731 if (strcmp(*argv
, "mode") == 0) {
733 xfrm_mode_parse(&req
.xspi
.info
.mode
, &argc
, &argv
);
734 } else if (strcmp(*argv
, "mark") == 0) {
735 xfrm_parse_mark(&mark
, &argc
, &argv
);
736 } else if (strcmp(*argv
, "reqid") == 0) {
738 xfrm_reqid_parse(&req
.xspi
.info
.reqid
, &argc
, &argv
);
739 } else if (strcmp(*argv
, "seq") == 0) {
741 xfrm_seq_parse(&req
.xspi
.info
.seq
, &argc
, &argv
);
742 } else if (strcmp(*argv
, "min") == 0) {
744 duparg("min", *argv
);
749 if (get_u32(&req
.xspi
.min
, *argv
, 0))
750 invarg("value after \"min\" is invalid", *argv
);
751 } else if (strcmp(*argv
, "max") == 0) {
753 duparg("max", *argv
);
758 if (get_u32(&req
.xspi
.max
, *argv
, 0))
759 invarg("value after \"max\" is invalid", *argv
);
761 /* try to assume ID */
763 invarg("unknown", *argv
);
767 xfrm_id_parse(&req
.xspi
.info
.saddr
, &req
.xspi
.info
.id
,
768 &req
.xspi
.info
.family
, 0, &argc
, &argv
);
769 if (req
.xspi
.info
.id
.spi
) {
770 fprintf(stderr
, "\"spi\" is invalid\n");
773 if (preferred_family
== AF_UNSPEC
)
774 preferred_family
= req
.xspi
.info
.family
;
780 fprintf(stderr
, "Not enough information: ID is required\n");
786 fprintf(stderr
, "\"max\" is missing\n");
789 if (req
.xspi
.min
> req
.xspi
.max
) {
790 fprintf(stderr
, "value after \"min\" is larger than value after \"max\"\n");
795 fprintf(stderr
, "\"min\" is missing\n");
799 /* XXX: Default value defined in PF_KEY;
800 * See kernel's net/key/af_key.c(pfkey_getspi).
802 req
.xspi
.min
= 0x100;
803 req
.xspi
.max
= 0x0fffffff;
805 /* XXX: IPCOMP spi is 16-bits;
806 * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
808 if (req
.xspi
.info
.id
.proto
== IPPROTO_COMP
)
809 req
.xspi
.max
= 0xffff;
812 if (mark
.m
& mark
.v
) {
813 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
814 (void *)&mark
, sizeof(mark
));
816 fprintf(stderr
, "XFRMA_MARK failed\n");
821 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
824 if (req
.xspi
.info
.family
== AF_UNSPEC
)
825 req
.xspi
.info
.family
= AF_INET
;
828 if (rtnl_talk(&rth
, &req
.n
, res_n
, sizeof(res_buf
)) < 0)
831 if (xfrm_state_print(NULL
, res_n
, (void *)stdout
) < 0) {
832 fprintf(stderr
, "An error :-)\n");
841 static int xfrm_state_filter_match(struct xfrm_usersa_info
*xsinfo
)
846 if (filter
.id_src_mask
)
847 if (xfrm_addr_match(&xsinfo
->saddr
, &filter
.xsinfo
.saddr
,
850 if (filter
.id_dst_mask
)
851 if (xfrm_addr_match(&xsinfo
->id
.daddr
, &filter
.xsinfo
.id
.daddr
,
854 if ((xsinfo
->id
.proto
^filter
.xsinfo
.id
.proto
)&filter
.id_proto_mask
)
856 if ((xsinfo
->id
.spi
^filter
.xsinfo
.id
.spi
)&filter
.id_spi_mask
)
858 if ((xsinfo
->mode
^filter
.xsinfo
.mode
)&filter
.mode_mask
)
860 if ((xsinfo
->reqid
^filter
.xsinfo
.reqid
)&filter
.reqid_mask
)
862 if (filter
.state_flags_mask
)
863 if ((xsinfo
->flags
& filter
.xsinfo
.flags
) == 0)
869 int xfrm_state_print(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
,
872 FILE *fp
= (FILE *)arg
;
873 struct rtattr
*tb
[XFRMA_MAX
+1];
875 struct xfrm_usersa_info
*xsinfo
= NULL
;
876 struct xfrm_user_expire
*xexp
= NULL
;
877 struct xfrm_usersa_id
*xsid
= NULL
;
878 int len
= n
->nlmsg_len
;
880 if (n
->nlmsg_type
!= XFRM_MSG_NEWSA
&&
881 n
->nlmsg_type
!= XFRM_MSG_DELSA
&&
882 n
->nlmsg_type
!= XFRM_MSG_UPDSA
&&
883 n
->nlmsg_type
!= XFRM_MSG_EXPIRE
) {
884 fprintf(stderr
, "Not a state: %08x %08x %08x\n",
885 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
889 if (n
->nlmsg_type
== XFRM_MSG_DELSA
) {
890 /* Dont blame me for this .. Herbert made me do it */
891 xsid
= NLMSG_DATA(n
);
892 len
-= NLMSG_SPACE(sizeof(*xsid
));
893 } else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
) {
894 xexp
= NLMSG_DATA(n
);
895 xsinfo
= &xexp
->state
;
896 len
-= NLMSG_SPACE(sizeof(*xexp
));
899 xsinfo
= NLMSG_DATA(n
);
900 len
-= NLMSG_SPACE(sizeof(*xsinfo
));
904 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
908 if (xsinfo
&& !xfrm_state_filter_match(xsinfo
))
911 if (n
->nlmsg_type
== XFRM_MSG_DELSA
)
912 fprintf(fp
, "Deleted ");
913 else if (n
->nlmsg_type
== XFRM_MSG_UPDSA
)
914 fprintf(fp
, "Updated ");
915 else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
)
916 fprintf(fp
, "Expired ");
918 if (n
->nlmsg_type
== XFRM_MSG_DELSA
)
919 rta
= XFRMSID_RTA(xsid
);
920 else if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
)
921 rta
= XFRMEXP_RTA(xexp
);
923 rta
= XFRMS_RTA(xsinfo
);
925 parse_rtattr(tb
, XFRMA_MAX
, rta
, len
);
927 if (n
->nlmsg_type
== XFRM_MSG_DELSA
) {
928 /* xfrm_policy_id_print(); */
931 fprintf(stderr
, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
934 if (RTA_PAYLOAD(tb
[XFRMA_SA
]) < sizeof(*xsinfo
)) {
935 fprintf(stderr
, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
938 xsinfo
= RTA_DATA(tb
[XFRMA_SA
]);
941 xfrm_state_info_print(xsinfo
, tb
, fp
, NULL
, NULL
);
943 if (n
->nlmsg_type
== XFRM_MSG_EXPIRE
) {
945 fprintf(fp
, "hard %u", xexp
->hard
);
946 fprintf(fp
, "%s", _SL_
);
956 static int xfrm_state_get_or_delete(int argc
, char **argv
, int delete)
958 struct rtnl_handle rth
;
961 struct xfrm_usersa_id xsid
;
962 char buf
[RTA_BUF_SIZE
];
966 struct xfrm_mark mark
= {0, 0};
968 memset(&req
, 0, sizeof(req
));
970 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsid
));
971 req
.n
.nlmsg_flags
= NLM_F_REQUEST
;
972 req
.n
.nlmsg_type
= delete ? XFRM_MSG_DELSA
: XFRM_MSG_GETSA
;
973 req
.xsid
.family
= preferred_family
;
976 xfrm_address_t saddr
;
978 if (strcmp(*argv
, "mark") == 0) {
979 xfrm_parse_mark(&mark
, &argc
, &argv
);
982 invarg("unknown", *argv
);
986 memset(&id
, 0, sizeof(id
));
987 memset(&saddr
, 0, sizeof(saddr
));
988 xfrm_id_parse(&saddr
, &id
, &req
.xsid
.family
, 0,
991 memcpy(&req
.xsid
.daddr
, &id
.daddr
, sizeof(req
.xsid
.daddr
));
992 req
.xsid
.spi
= id
.spi
;
993 req
.xsid
.proto
= id
.proto
;
995 addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_SRCADDR
,
996 (void *)&saddr
, sizeof(saddr
));
1002 if (mark
.m
& mark
.v
) {
1003 int r
= addattr_l(&req
.n
, sizeof(req
.buf
), XFRMA_MARK
,
1004 (void *)&mark
, sizeof(mark
));
1006 fprintf(stderr
, "XFRMA_MARK failed\n");
1011 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1014 if (req
.xsid
.family
== AF_UNSPEC
)
1015 req
.xsid
.family
= AF_INET
;
1018 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
1021 char buf
[NLMSG_BUF_SIZE
];
1022 struct nlmsghdr
*res_n
= (struct nlmsghdr
*)buf
;
1024 memset(buf
, 0, sizeof(buf
));
1026 if (rtnl_talk(&rth
, &req
.n
, res_n
, sizeof(req
)) < 0)
1029 if (xfrm_state_print(NULL
, res_n
, (void *)stdout
) < 0) {
1030 fprintf(stderr
, "An error :-)\n");
1041 * With an existing state of nlmsg, make new nlmsg for deleting the state
1042 * and store it to buffer.
1044 static int xfrm_state_keep(const struct sockaddr_nl
*who
,
1048 struct xfrm_buffer
*xb
= (struct xfrm_buffer
*)arg
;
1049 struct rtnl_handle
*rth
= xb
->rth
;
1050 struct xfrm_usersa_info
*xsinfo
= NLMSG_DATA(n
);
1051 int len
= n
->nlmsg_len
;
1052 struct nlmsghdr
*new_n
;
1053 struct xfrm_usersa_id
*xsid
;
1055 if (n
->nlmsg_type
!= XFRM_MSG_NEWSA
) {
1056 fprintf(stderr
, "Not a state: %08x %08x %08x\n",
1057 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
1061 len
-= NLMSG_LENGTH(sizeof(*xsinfo
));
1063 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
1067 if (!xfrm_state_filter_match(xsinfo
))
1070 if (xb
->offset
> xb
->size
) {
1071 fprintf(stderr
, "State buffer overflow\n");
1075 new_n
= (struct nlmsghdr
*)(xb
->buf
+ xb
->offset
);
1076 new_n
->nlmsg_len
= NLMSG_LENGTH(sizeof(*xsid
));
1077 new_n
->nlmsg_flags
= NLM_F_REQUEST
;
1078 new_n
->nlmsg_type
= XFRM_MSG_DELSA
;
1079 new_n
->nlmsg_seq
= ++rth
->seq
;
1081 xsid
= NLMSG_DATA(new_n
);
1082 xsid
->family
= xsinfo
->family
;
1083 memcpy(&xsid
->daddr
, &xsinfo
->id
.daddr
, sizeof(xsid
->daddr
));
1084 xsid
->spi
= xsinfo
->id
.spi
;
1085 xsid
->proto
= xsinfo
->id
.proto
;
1087 addattr_l(new_n
, xb
->size
, XFRMA_SRCADDR
, &xsinfo
->saddr
,
1088 sizeof(xsid
->daddr
));
1090 xb
->offset
+= new_n
->nlmsg_len
;
1096 static int xfrm_state_list_or_deleteall(int argc
, char **argv
, int deleteall
)
1099 struct rtnl_handle rth
;
1103 filter
.xsinfo
.family
= preferred_family
;
1106 if (strcmp(*argv
, "mode") == 0) {
1108 xfrm_mode_parse(&filter
.xsinfo
.mode
, &argc
, &argv
);
1110 filter
.mode_mask
= XFRM_FILTER_MASK_FULL
;
1112 } else if (strcmp(*argv
, "reqid") == 0) {
1114 xfrm_reqid_parse(&filter
.xsinfo
.reqid
, &argc
, &argv
);
1116 filter
.reqid_mask
= XFRM_FILTER_MASK_FULL
;
1118 } else if (strcmp(*argv
, "flag") == 0) {
1120 xfrm_state_flag_parse(&filter
.xsinfo
.flags
, &argc
, &argv
);
1122 filter
.state_flags_mask
= XFRM_FILTER_MASK_FULL
;
1126 invarg("unknown", *argv
);
1130 xfrm_id_parse(&filter
.xsinfo
.saddr
, &filter
.xsinfo
.id
,
1131 &filter
.xsinfo
.family
, 1, &argc
, &argv
);
1132 if (preferred_family
== AF_UNSPEC
)
1133 preferred_family
= filter
.xsinfo
.family
;
1138 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1142 struct xfrm_buffer xb
;
1143 char buf
[NLMSG_DELETEALL_BUF_SIZE
];
1147 xb
.size
= sizeof(buf
);
1150 for (i
= 0; ; i
++) {
1153 char buf
[NLMSG_BUF_SIZE
];
1155 .n
.nlmsg_len
= NLMSG_HDRLEN
,
1156 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
1157 .n
.nlmsg_type
= XFRM_MSG_GETSA
,
1158 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
1165 fprintf(stderr
, "Delete-all round = %d\n", i
);
1167 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
1168 perror("Cannot send dump request");
1172 if (rtnl_dump_filter(&rth
, xfrm_state_keep
, &xb
) < 0) {
1173 fprintf(stderr
, "Delete-all terminated\n");
1176 if (xb
.nlmsg_count
== 0) {
1178 fprintf(stderr
, "Delete-all completed\n");
1182 if (rtnl_send_check(&rth
, xb
.buf
, xb
.offset
) < 0) {
1183 perror("Failed to send delete-all request\n");
1187 fprintf(stderr
, "Delete-all nlmsg count = %d\n", xb
.nlmsg_count
);
1194 struct xfrm_address_filter addrfilter
= {
1195 .saddr
= filter
.xsinfo
.saddr
,
1196 .daddr
= filter
.xsinfo
.id
.daddr
,
1197 .family
= filter
.xsinfo
.family
,
1198 .splen
= filter
.id_src_mask
,
1199 .dplen
= filter
.id_dst_mask
,
1203 char buf
[NLMSG_BUF_SIZE
];
1205 .n
.nlmsg_len
= NLMSG_HDRLEN
,
1206 .n
.nlmsg_flags
= NLM_F_DUMP
| NLM_F_REQUEST
,
1207 .n
.nlmsg_type
= XFRM_MSG_GETSA
,
1208 .n
.nlmsg_seq
= rth
.dump
= ++rth
.seq
,
1211 if (filter
.xsinfo
.id
.proto
)
1212 addattr8(&req
.n
, sizeof(req
), XFRMA_PROTO
,
1213 filter
.xsinfo
.id
.proto
);
1214 addattr_l(&req
.n
, sizeof(req
), XFRMA_ADDRESS_FILTER
,
1215 &addrfilter
, sizeof(addrfilter
));
1217 if (rtnl_send(&rth
, (void *)&req
, req
.n
.nlmsg_len
) < 0) {
1218 perror("Cannot send dump request");
1222 if (rtnl_dump_filter(&rth
, xfrm_state_print
, stdout
) < 0) {
1223 fprintf(stderr
, "Dump terminated\n");
1233 static int print_sadinfo(struct nlmsghdr
*n
, void *arg
)
1235 FILE *fp
= (FILE *)arg
;
1236 __u32
*f
= NLMSG_DATA(n
);
1237 struct rtattr
*tb
[XFRMA_SAD_MAX
+1];
1241 int len
= n
->nlmsg_len
;
1243 len
-= NLMSG_LENGTH(sizeof(__u32
));
1245 fprintf(stderr
, "SADinfo: Wrong len %d\n", len
);
1249 rta
= XFRMSAPD_RTA(f
);
1250 parse_rtattr(tb
, XFRMA_SAD_MAX
, rta
, len
);
1252 if (tb
[XFRMA_SAD_CNT
]) {
1253 fprintf(fp
, "\t SAD");
1254 cnt
= (__u32
*)RTA_DATA(tb
[XFRMA_SAD_CNT
]);
1255 fprintf(fp
, " count %d", *cnt
);
1257 fprintf(fp
, "BAD SAD info returned\n");
1262 if (tb
[XFRMA_SAD_HINFO
]) {
1263 struct xfrmu_sadhinfo
*si
;
1265 if (RTA_PAYLOAD(tb
[XFRMA_SAD_HINFO
]) < sizeof(*si
)) {
1266 fprintf(fp
, "BAD SAD length returned\n");
1270 si
= RTA_DATA(tb
[XFRMA_SAD_HINFO
]);
1271 fprintf(fp
, " (buckets ");
1272 fprintf(fp
, "count %d", si
->sadhcnt
);
1273 fprintf(fp
, " Max %d", si
->sadhmcnt
);
1282 static int xfrm_sad_getinfo(int argc
, char **argv
)
1284 struct rtnl_handle rth
;
1291 memset(&req
, 0, sizeof(req
));
1292 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.flags
));
1293 req
.n
.nlmsg_flags
= NLM_F_REQUEST
;
1294 req
.n
.nlmsg_type
= XFRM_MSG_GETSADINFO
;
1295 req
.flags
= 0XFFFFFFFF;
1297 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1300 if (rtnl_talk(&rth
, &req
.n
, &req
.n
, sizeof(req
)) < 0)
1303 print_sadinfo(&req
.n
, (void *)stdout
);
1310 static int xfrm_state_flush(int argc
, char **argv
)
1312 struct rtnl_handle rth
;
1315 struct xfrm_usersa_flush xsf
;
1317 char *protop
= NULL
;
1319 memset(&req
, 0, sizeof(req
));
1321 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(req
.xsf
));
1322 req
.n
.nlmsg_flags
= NLM_F_REQUEST
;
1323 req
.n
.nlmsg_type
= XFRM_MSG_FLUSHSA
;
1327 if (strcmp(*argv
, "proto") == 0) {
1331 duparg("proto", *argv
);
1336 ret
= xfrm_xfrmproto_getbyname(*argv
);
1338 invarg("XFRM-PROTO value is invalid", *argv
);
1340 req
.xsf
.proto
= (__u8
)ret
;
1342 invarg("unknown", *argv
);
1347 if (rtnl_open_byproto(&rth
, 0, NETLINK_XFRM
) < 0)
1351 fprintf(stderr
, "Flush state with XFRM-PROTO value \"%s\"\n",
1352 strxf_xfrmproto(req
.xsf
.proto
));
1354 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
1362 int do_xfrm_state(int argc
, char **argv
)
1365 return xfrm_state_list_or_deleteall(0, NULL
, 0);
1367 if (matches(*argv
, "add") == 0)
1368 return xfrm_state_modify(XFRM_MSG_NEWSA
, 0,
1370 if (matches(*argv
, "update") == 0)
1371 return xfrm_state_modify(XFRM_MSG_UPDSA
, 0,
1373 if (matches(*argv
, "allocspi") == 0)
1374 return xfrm_state_allocspi(argc
-1, argv
+1);
1375 if (matches(*argv
, "delete") == 0)
1376 return xfrm_state_get_or_delete(argc
-1, argv
+1, 1);
1377 if (matches(*argv
, "deleteall") == 0 || matches(*argv
, "delall") == 0)
1378 return xfrm_state_list_or_deleteall(argc
-1, argv
+1, 1);
1379 if (matches(*argv
, "list") == 0 || matches(*argv
, "show") == 0
1380 || matches(*argv
, "lst") == 0)
1381 return xfrm_state_list_or_deleteall(argc
-1, argv
+1, 0);
1382 if (matches(*argv
, "get") == 0)
1383 return xfrm_state_get_or_delete(argc
-1, argv
+1, 0);
1384 if (matches(*argv
, "flush") == 0)
1385 return xfrm_state_flush(argc
-1, argv
+1);
1386 if (matches(*argv
, "count") == 0) {
1387 return xfrm_sad_getinfo(argc
, argv
);
1389 if (matches(*argv
, "help") == 0)
1391 fprintf(stderr
, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv
);